Breast cancer is the most commonly diagnosed cancer among women worldwide, and its outcome depends heavily on the stage at which it is detected. Tumors identified through organized mammography programs are, on average, smaller and less advanced than those found after symptoms appear, which is why health authorities across high-income and middle-income countries have invested heavily in population-wide screening. South Korea operates one of the most comprehensive such programs, offering biennial mammography to women over designated ages through a national infrastructure administered in connection with the National Health Insurance Service. The program’s reach makes the country an unusually informative setting for studying whether organized screening delivers equitable participation.

Screening is most effective when it is repeated at regular intervals, yet most studies of screening disparities have examined only single rounds of testing. The new study takes a longer view, asking not simply whether women ever received a mammogram but whether they completed every one of the five biennial screening cycles recommended across a ten-year window. This distinction matters because organized screening programs are designed to detect tumors early through consistent, population-wide participation, and gaps in adherence can allow cancers to progress undetected between rounds. A woman who attends one appointment but misses the next three receives far less of the program’s protective benefit than the single-round statistics would suggest. Prior research has already documented that women with disabilities experience disparities not only in screening but also in cancer detection and treatment, contributing to poorer outcomes overall. The Korean team set out to quantify how disability status, disability type, and disability severity shape the odds of completing the full course of recommended screening.

To answer that question, the investigators assembled a retrospective cohort by linking two national data sources: the Korean National Cancer Screening Program Data, which records participation in the country’s organized screening services, and the Korea National Disability Registration System, which contains medically verified records of disability. The cohort comprised 4,956,744 women who participated in screening in 2011 or 2012 and were then followed for ten years. Because disability registration in Korea requires medical verification, the researchers were able to classify participants not only by whether they had a disability but also by its officially defined type and its severity. The fifteen disability types recognized under the national system were grouped into six broader categories: physical disabilities, brain injury, communication disabilities, major internal organ disabilities, intellectual disability and autism, and mental disorders.

This administrative linkage gave the study a foundation that survey-based research often lacks. Self-reported screening behavior is known to be imperfect, with respondents sometimes recalling tests that records do not confirm, and self-reported disability can be inconsistent across conditions and cultures. By drawing on government records of both screening attendance and disability status, the investigators minimized recall bias and misclassification, producing a dataset in which the exposure and the outcome were each documented independently of the participants’ own reports.

The primary outcome was deliberately stringent: completion of all five recommended biennial screening cycles over the follow-up period. This measure captures the kind of sustained, long-term engagement that screening programs depend upon, rather than a single episode of care. By anchoring the analysis in a universal, government-organized screening program, the study also offered an opportunity to examine whether disparities persist in a system where cost-related obstacles have been substantially reduced for participants, including provisions designed to ease access for people with disabilities.

The findings were unambiguous. Women with disabilities had lower odds of completing all five screenings compared with women who had no registered disability. The disparity was not uniform, however. The researchers observed a gradient pattern by severity: women with severe disabilities showed the lowest adherence, while those with mild disabilities had slightly higher adherence than their severely disabled counterparts, though the overall pattern still reflected disadvantage relative to women without disabilities. This gradient suggests that the barriers to long-term screening are not simply a binary matter of having or not having a disability, but intensify with the degree to which a disability affects daily functioning and health care access. In practical terms, the more support a woman needs to manage daily life, the less likely she was to remain within the screening program across an entire decade.

Disability type also mattered. Adherence differed across the six categories, with the lowest participation among women with intellectual disability and autism and the highest participation among women with physical disabilities. That physical disabilities were associated with comparatively better adherence, while intellectual and developmental disabilities carried the greatest disadvantage, points to barriers that extend beyond the logistical challenges of physically attending a screening appointment. Communication difficulties, differences in health literacy, caregiver dependence, and the ways screening services are designed and delivered may all play a role in shaping whether women with cognitive and developmental disabilities return for repeated mammograms over a decade. Mammography itself can be an uncomfortable and confusing procedure, and for women who have difficulty understanding explanation, consenting to the examination, or tolerating the positioning it requires, each successive appointment may become harder to arrange and complete without individually adapted support.

A central implication of the study is that financial support alone does not close the gap. Korea’s National Cancer Screening Program provides organized, population-based mammography with reduced or eliminated cost barriers, meaning that the disparities observed cannot be attributed primarily to an inability to pay. Instead, the authors argue, the persistence of these gaps points to structural and procedural obstacles embedded in how screening is offered, scheduled, communicated, and experienced by women with disabilities. The study’s conclusion calls explicitly for policy efforts such as a disability-responsive design of screening services and routine equity monitoring within organized screening programs, so that participation gaps can be tracked and addressed systematically rather than left to emerge unnoticed in aggregate statistics.

The research carries considerable weight because of its scale and design. A cohort of nearly five million women, drawn from nationwide administrative data and followed for a full decade, offers a level of statistical power and generalizability within the Korean context that smaller, clinic-based or survey-based studies cannot match. The size of the cohort also allowed the investigators to examine subgroups that smaller studies often cannot analyze reliably, including women with rarer disability types, without losing precision. The use of medically verified disability registration data also reduces the risk of misclassification that can arise when disability status is self-reported. The study was approved by the Institutional Review Board of the College of Medicine at The Catholic University of Korea, and the requirement for informed written consent was waived because the analysis used de-identified data originally collected for administrative purposes. The work was funded by the National R&D Program for Cancer Control through the National Cancer Center, supported by the Ministry of Health and Welfare, and by a National Research Foundation of Korea grant funded through the Ministry of Science and ICT.

Like all observational research, the study has limitations that shape how its findings should be interpreted. Because it relies on registered disabilities, women who have impairments but are not formally registered would be counted among those without disabilities, potentially diluting measured differences. If anything, this misclassification would tend to make the observed disparities appear smaller than they truly are, which lends additional weight to the gaps the study did detect. The cohort consists of women who participated in screening at the outset, in 2011 or 2012, which means the analysis focuses on long-term adherence among initial participants rather than on initial uptake itself; women with disabilities who never entered the program in the first place would fall outside the cohort entirely, so the full extent of screening inequity may be still greater. As with any retrospective cohort design, the study can identify associations between disability characteristics and screening adherence but cannot definitively establish the mechanisms through which those associations arise. The findings are also rooted in the specific structure of Korea’s organized screening program and disability registration system, and the degree to which they generalize to other health systems with different financing, delivery, and disability classification arrangements would require further study.

Nevertheless, the study adds an important international data point to a growing body of evidence that people with disabilities face systematic disadvantages across the cancer care continuum, from prevention and screening through diagnosis and treatment. International health frameworks have increasingly emphasized that persons with disabilities have the same right to the highest attainable standard of health as everyone else, and that health systems are obligated to remove the barriers that prevent them from exercising that right. By demonstrating that these disadvantages persist in a system with universal organized screening and reduced financial barriers, the Korean findings challenge the assumption that coverage and cost subsidies are sufficient to achieve equity. The severity gradient and the especially low adherence among women with intellectual disability and autism suggest that interventions will need to be tailored: accessible facilities and transportation support may help some women, while others may require adapted communication, longer appointments, caregiver involvement, or individualized reminder and navigation systems.

The authors’ call for disability-responsive design implies rethinking screening programs from the ground up, considering how appointment scheduling, facility layout, mammography equipment, staff training, and follow-up communication accommodate the full range of disability types and severities. Routine equity monitoring, meanwhile, would embed the kind of analysis performed in this study into the ongoing operation of screening programs, allowing administrators to detect widening gaps and evaluate whether interventions are working. As organized screening programs in many countries confront aging populations and growing attention to health equity, the Korean cohort study offers both a warning and a template: long-term adherence data, disaggregated by disability status, type, and severity, can reveal disparities that single-round participation statistics conceal, and addressing them will require deliberate design choices rather than the removal of financial barriers alone.

Natural menopause occurs when menstrual periods stop permanently without surgery, chemotherapy, or other medical intervention. Although menopause typically occurs later in life, premature menopause is generally defined as occurring before age 40, while early menopause occurs between ages 40 and 45. The new study used a broader research definition of early natural menopause, including women whose menopause occurred before age 48. These conditions affect an estimated 6% of women worldwide and have previously been linked to increased risks of cardiovascular disease, dementia, and premature death.

The researchers analyzed health and social data from nearly 20,000 women with early natural menopause. Rather than examining a single social factor in isolation, they created a cumulative measure based on 14 social determinants of health. Participants were then classified into favorable, intermediate, or unfavorable groups according to their overall social circumstances. This approach was designed to capture the reality that disadvantage rarely occurs one factor at a time: unemployment may coincide with lower income, unstable housing, limited education, reduced access to healthcare, and chronic psychosocial stress.

Social determinants of health include the conditions in which people are born, grow up, learn, work, live, worship, spend leisure time, and age. These circumstances can influence exposure to stress, environmental hazards, health information, nutritious food, preventive medicine, and high-quality medical care. They can also shape whether a person is able to follow treatment recommendations or obtain timely evaluation for symptoms. By combining multiple determinants into a single risk profile, the researchers sought to measure the cumulative biological and social pressure that may influence health after early menopause.

Participants were followed for a median of 10.8 years, allowing the investigators to examine health outcomes over a substantial period. The analysis showed that women in more disadvantaged social circumstances experienced significantly worse health trajectories than those with more favorable circumstances. Their risks were elevated for all-cause mortality, meaning death from any cause, and for cardiovascular disease, which includes conditions affecting the heart and blood vessels. The study also identified a pronounced association between cumulative disadvantage and incident dementia, referring to newly diagnosed disease during follow-up.

Among the 14 social variables examined, unemployment showed the strongest independent association with both all-cause mortality and incident dementia. The finding does not establish that unemployment directly causes either outcome, but it highlights employment status as a potentially important marker of broader economic and psychological strain. Loss of work can reduce income, health insurance, social connection, daily structure, and access to services. Long-term unemployment may also contribute to chronic stress and depression, biological processes that have been associated with inflammation, impaired cardiovascular health, and cognitive decline.

Early loss of ovarian function may provide part of the biological context for these findings. Estrogen influences vascular function, lipid metabolism, bone health, and several processes involved in brain maintenance. When estrogen exposure declines earlier than expected, women may spend more years with potential vulnerability to cardiovascular and neurological disease. Social adversity could intensify that vulnerability through factors such as hypertension, poor sleep, chronic inflammation, smoking, limited physical activity, or delayed medical care. The study’s results suggest that biological risk and social conditions may interact rather than operate independently.

The researchers found no significant association between the social-determinants-of-health measures and incident cancer in this group. That contrast is important because it indicates that the effects of social disadvantage were not uniform across every major health outcome. The results instead point to a particularly strong relationship with mortality, cardiovascular disease, and dementia. Because the study was observational and based on statistical associations, the findings cannot prove a direct causal pathway. Differences in health behaviors, access to treatment, pre-existing illness, and other unmeasured factors may also have influenced the results.

The authors argue that social history should become a routine component of care for women with premature or early menopause. A clinical assessment could include employment and financial security, education, housing, transportation, social support, access to healthcare, and exposure to discrimination or chronic stress. Identifying these issues early could help clinicians connect patients with cardiovascular screening, mental-health services, employment or social assistance, and strategies to protect cognitive health. “Disrupting this complex interaction will require a routine, comprehensive assessment of social determinants of health as a fundamental principle” in menopause care, said Stephanie Faubion, medical director for The Menopause Society. The study underscores that early menopause is not only a reproductive milestone but also a potential signal for long-term health monitoring—especially when it occurs alongside persistent social disadvantage.

Subject of Research: People

Article Title: Combined social determinants of health, mortality, and adverse health outcomes in early natural menopause

News Publication Date: 12-Aug-2026

Web References: https://menopause.org; https://menopause.org/wp-content/uploads/press-release/MENO-D-26-00058.pdf

References: Menopause. DOI: 10.1097/GME.0000000000000002866

Keywords: early natural menopause, premature menopause, social determinants of health, unemployment, cardiovascular disease, dementia, mortality, women’s health, socioeconomic disadvantage, healthy aging

The study focuses on prospective register-based research, a design that can provide unusually detailed insight into long-term health outcomes. In this approach, researchers identify individuals with documented mental-health conditions through medical or administrative records and then follow them forward in time to determine whether cancer diagnoses occur. Because Nordic countries maintain linked population registers covering healthcare use, diagnoses, prescriptions and mortality, investigators can study health patterns across entire populations rather than relying only on small clinical samples or self-reported surveys.

A systematic review first identifies relevant studies according to predefined scientific criteria, while a meta-analysis combines their statistical results. This can increase the precision of an overall estimate, especially when individual studies produce different findings or examine separate populations. However, combining studies is not as simple as averaging numbers. Researchers must account for differences in how mental illness and cancer were defined, how long participants were followed, which cancer types were included and whether the studies adjusted for factors such as age, smoking, alcohol consumption, socioeconomic conditions and access to medical care.

The relationship between mental illness and cancer is biologically and socially complicated. Some psychiatric disorders are associated with chronic inflammation, altered stress-hormone regulation, sleep disruption and changes in immune function. Medications, reduced physical activity, poor diet and tobacco or alcohol use may also influence cancer risk. At the same time, people with serious mental illness can encounter barriers to preventive healthcare, including lower participation in screening programs, fragmented medical services and delays in receiving diagnostic tests. These factors may affect both the development of cancer and the likelihood that it is detected early.

Register-based studies are particularly valuable for investigating these questions because they can include hundreds of thousands or even millions of people. They also reduce the risk of recall bias, which occurs when participants inaccurately remember past symptoms or behaviors. Yet registers have important limitations. A diagnosis recorded in a health database may reflect access to care as much as underlying disease, and registers often contain limited information about lifestyle, symptom severity, treatment adherence and environmental exposures. A patient’s mental-health diagnosis may also change over time, while cancer risk can vary substantially between different psychiatric conditions and cancer sites.

The Nordic setting offers both scientific strengths and interpretive challenges. National registers are generally comprehensive and can be linked using secure personal identifiers, enabling researchers to track outcomes over many years. The populations are also relatively stable, making follow-up more complete. Nevertheless, findings from Denmark, Finland, Iceland, Norway or Sweden may not apply equally to countries with different healthcare systems, cancer-screening policies, ethnic compositions or levels of social inequality. A meta-analysis can reveal broad patterns, but it cannot eliminate these differences.

One of the most important questions is whether any observed association represents a direct effect of mental illness or a combination of multiple pathways. For example, if people with a psychiatric diagnosis are more likely to develop a particular cancer, the explanation could involve biology, medication exposure, smoking, delayed screening or differences in how frequently they interact with healthcare services. Statistical adjustment can reduce the influence of measured confounders, but it cannot fully correct for factors that were not recorded or measured inaccurately. Researchers therefore need to distinguish carefully between correlation and causation.

The study could have significant implications for clinical practice if it identifies consistent patterns across Nordic investigations. Mental-health services may need stronger links with primary care, cancer screening and preventive medicine. Clinicians could use routine psychiatric appointments as opportunities to discuss smoking cessation, vaccination, physical activity and age-appropriate cancer screening. Importantly, such measures should not frame mental illness as an inevitable cause of cancer or place responsibility solely on patients. Instead, they could support more integrated healthcare and address structural barriers that contribute to unequal outcomes.

The review also highlights why cancer research must include people with mental illness more fully. If these individuals are underrepresented in clinical trials or receive cancer care later than the general population, medical knowledge may fail to reflect their needs. The Nordic evidence base may help researchers identify which cancer types, psychiatric diagnoses and healthcare pathways deserve closer investigation. While the citation provided does not report the study’s numerical findings, its central contribution is to assemble prospective population-level evidence and evaluate how consistently mental illness is linked with cancer risk. The results may ultimately guide more equitable prevention, earlier detection and coordinated care for people living with psychiatric disorders.

Subject of Research: Cancer risk among individuals with mental illness

Article Title: Cancer risk among individuals with mental illness – a systematic review and meta-analysis of nordic register-based prospective studies

Article References: Xiao, X., Sadeghi, F., Murphy, G. et al. “Cancer risk among individuals with mental illness – a systematic review and meta-analysis of nordic register-based prospective studies.” Translational Psychiatry (2026). https://doi.org/10.1038/s41398-026-04351-5

Image Credits: AI Generated

DOI: https://doi.org/10.1038/s41398-026-04351-5

Keywords: mental illness, cancer risk, systematic review, meta-analysis, Nordic registers, prospective studies, public health, cancer prevention, health inequalities

The study, published in Tobacco Control, evaluates the FDA’s proposed product standard to cap nicotine in combusted cigarettes at minimally or nonaddictive levels. While a typical cigarette contains about 10 to 14 milligrams of nicotine, the proposal would set the limit at 0.7 milligrams.

Because nicotine is the core driver of addiction, lowering nicotine exposure may reduce initiation and make quitting more achievable. The researchers focused on major depression, a group that experiences smoking at disproportionately higher rates than the general population, and for whom smoking can intensify depressive symptoms.

Using a computational forecasting model, the team projected long-term health and financial outcomes for the U.S. population through 2100. The model tracks how individuals transition between health and substance-use states over time, starting with people born without major depression or smoking history.

To estimate real-world impacts, the authors scaled results to U.S. costs and prevalence using data sources including the Medical Expenditure Panel Survey and the National Survey on Drug Use and Health. This allowed the simulation to translate changes in smoking behavior into measurable mortality prevention, disease burden, and downstream productivity effects.

Results indicate that the policy could drive smoking rates below 1% across population groups by 2040. For individuals with and without major depression, the model projects near elimination of smoking by that horizon, with sustained effects into later decades.

By 2100, the researchers estimate the policy could prevent 1.6 million premature deaths and reduce the number of people who develop major depression by 8 million. The model also suggests that altered tobacco exposure would ripple through public health outcomes over decades.

From an economic perspective, reduced smoking is projected to boost worker productivity by $298 billion and increase consumer spending by $1.3 trillion. The mechanism is straightforward in the model: fewer early deaths translate into more years of work and consumption.

While a federal mandate is uncertain, the researchers argue that states and localities could act now through sales restrictions, similar to existing approaches used for flavored products. Their findings are made explorable through an online interactive policy tool designed to support decision-making.

Subject of Research: People
Article Title:
News Publication Date: 15-Jul-2026
Web References: https://doi.org/10.1136/tc-2025-059896
References: FDA proposed product standard (nicotine cap); Tobacco Control Policy Tool; Medical Expenditure Panel Survey; National Survey on Drug Use and Health
Image Credits:

Keywords: nicotine reduction, combusted cigarettes, major depression, tobacco control, computational simulation, public health disparity, smoking prevalence, FDA standard, productivity

The study embarked on an ambitious journey to assess how variations in birth weight play a pivotal role in future health outcomes. Not only does birth weight serve as a straightforward indicator of neonatal health, but it also possesses the potential to influence long-term health trajectories, including the risk of childhood cancers. The authors meticulously analyzed data involving thousands of infants, thus establishing a robust dataset that enhances the validity of their findings. By scrutinizing this relationship, the research opens an important avenue for understanding the initial conditions that could set the stage for severe health complications later in life.

We delve deeper into the meticulous methodologies employed in this landmark study. Researchers made use of comprehensive birth and health records aggregated from various hospitals, adhering to stringent criteria to ensure that the sample was representative of the overall population. This rigorous approach is essential in epidemiological studies, particularly when evaluating risk factors for diseases as complex as cancer. Furthermore, the extensive data collection method facilitates an added layer of nuance, enabling a better understanding of the multifactorial aspects surrounding both neonatal morbidity and cancer development.

A significant consideration in the study was the aspect of neonatal morbidity, which includes conditions like respiratory distress syndrome, jaundice, and infections acquired during birth. Such conditions can compromise an infant’s immediate health, but this study takes the conversation further by questioning how these early adversities might contribute to cancer susceptibility later in life. The researchers sought to draw links between these early-life health challenges and the mechanisms by which they may perpetuate developmental vulnerabilities tied to cancer.

The findings of the study are both compelling and alarming. Statistical analyses revealed a discernible correlation between lower birth weights and increased incidences of certain types of childhood cancers. These results suggest that infants with compromised health at birth may carry a higher burden of risk, which could be rooted in genetic, environmental, or biological factors prevalent during their perinatal period. Such associations serve as a clarion call to the medical community to consider birth outcomes as critical components in pediatric oncology research.

Also worth noting is the ongoing discussion within the medical field surrounding the implications of these findings. Researchers and practitioners alike must now contemplate how this newfound knowledge can influence screening protocols and preventative approaches in pediatric health care. With data indicating that early interventions during pregnancy could potentially mitigate some of these risks, the study underscores the necessity for expecting mothers and healthcare providers to remain vigilant about prenatal care.

Community health initiatives may take shape as a direct consequence of this research, aimed at promoting healthier outcomes for mothers and infants alike. Initiatives that focus on optimal nutrition during pregnancy, access to prenatal care, and education surrounding potential complications could become cornerstones of public health strategies moving forward. This study emphasizes that the journey toward cancer prevention must begin before birth, creating a compelling argument for more comprehensive maternity care practices.

Beyond individual health discussions, this research has broad implications for public health policy—particularly for programs aiming to reduce disparities in neonatal health. Making a case for enhanced access to prenatal care, especially in underserved communities, this study highlights that addressing inequities in maternal and infant health could concurrently influence the prevalence of childhood cancer. Policymakers are urged to take heed of these findings, as they could shape legislation and funding toward maternal health programs.

Another critical dimension revealed in the research is the importance of further studies to explore the underlying mechanisms that connect lower birth weights and neonatal morbidity to cancer risk. While this study establishes correlation, understanding causation remains paramount. Future research initiatives could delve into genetic predispositions during gestation, maternal health issues, and potential environmental toxins that might influence both birth weight and cancer vulnerability.

In the global context, this study contributes to the growing body of literature examining childhood cancer risk factors across various populations. The research highlights the essential need for international collaborations aimed at investigating the multifactorial nature of cancer to holistically understand and combat the disease. It accentuates the urgency of uniting efforts across countries, combining resources and data to amplify the potential impact of findings into tangible health improvements.

As the research community digests these findings, a collective acknowledgment emerges regarding the necessity for interdisciplinary approaches in tackling childhood cancer. Public health officials, oncologists, obstetricians, and pediatricians must collaborate to bridge gaps in understanding. By encouraging dialogue among these professionals, key learnings can translate more effectively into clinical practices that align with findings from research.

In conclusion, this nationwide cohort study is far more than a mere academic endeavor; it is both a wake-up call and a roadmap for actionable changes in healthcare practices. By shining a light on how birth weight and neonatal health conditions impact childhood cancer risk, it stresses the importance of ongoing research and dialogue within the medical community. Paradigm shifts in maternal care and awareness of cancer risk factors during the early stages of life could pave the way for healthier futures.

Ultimately, Jung, E., Song, I.G., Lim, Y., and their collaborators have made an invaluable contribution to our understanding of pediatric health. As we await the implications of this research to resonate through both clinics and policy frameworks, one thing remains clear: addressing the needs of mothers and infants today can significantly alter the trajectory of childhood health tomorrow.

Subject of Research: The link between birth weight and neonatal morbidity as early-life risk factors for childhood cancer.

Article Title: Birth weight and neonatal morbidity as early-life risk factors for childhood cancer: a nationwide cohort study.

Article References:

Jung, E., Song, I.G., Lim, Y. et al. Birth weight and neonatal morbidity as early-life risk factors for childhood cancer: a nationwide cohort study.
BMC Pediatr (2025). https://doi.org/10.1186/s12887-025-06382-1

Image Credits: AI Generated

DOI: 10.1186/s12887-025-06382-1

Keywords: Birth weight, neonatal morbidity, childhood cancer, health outcomes, pediatric health, early-life risk factors.

The research enlisted 33,560 adult participants from the UK Biobank cohort, all of whom habitually recorded an average of 8,000 steps or fewer per day, placing them in a category of low to moderate activity. By leveraging precise, device-based step count data over sustained periods, researchers were able to classify participants into groups based on the duration of their step bouts: less than 5 minutes, 5 to under 10 minutes, 10 to under 15 minutes, and 15 minutes or longer. Such granularity in activity measurement permitted an unprecedented examination of bout length as an independent factor influencing long-term health outcomes.

Remarkably, the study found a clear, dose-responsive association between longer uninterrupted walking bouts and a lower risk of both mortality and cardiovascular disease events over a median follow-up period of 9.5 years. Participants who engaged predominantly in step bouts lasting 15 minutes or longer demonstrated less than a 1% risk of all-cause mortality and approximately a 4.4% risk for cardiovascular events, contrasting sharply with those who accumulated steps mostly in bursts shorter than 5 minutes, who faced mortality and CVD risks of around 4.4% and 13%, respectively. This robust gradient was statistically significant and consistent across demographic subgroups.

These results contradict the common assumption that accumulating physical activity in brief, multiple episodes throughout the day confers the same cardioprotective benefits as longer, intentional bouts. Instead, the data suggest that sustained walking sessions may induce physiological adaptations more conducive to vascular health and longevity. Extended bouts likely enhance cardiac output, improve endothelial function, and bolster metabolic regulation to a greater degree than fragmented activity, thereby mitigating the pathophysiological processes underpinning atherosclerosis and cardiovascular events.

Importantly, the study also highlighted more pronounced benefits of longer stepping bouts among individuals who were most sedentary, defined as those averaging fewer than 5,000 daily steps. For this subgroup, structuring physical activity into longer walks could meaningfully reduce the disproportionately high risk of premature death and cardiometabolic diseases associated with extreme inactivity. This insight provides critical direction for clinical counseling and public health programs targeting sedentary adults, advocating for achievable modifications emphasizing duration and continuity of walking.

The careful methodological approach, including adjustment for total daily step count, body mass index, smoking status, and underlying comorbidities, strengthens the confidence that bout length independently contributes to improved outcomes. By decomposing total activity volume into qualitative bout characteristics, this study transcends conventional metrics that focus solely on aggregate steps or total weekly activity time. It thereby enriches the nuanced understanding of how the patterning of movement influences cardiovascular risk.

Physiologically, prolonged stepping bouts may augment systemic shear stress on arterial walls, promoting favorable nitric oxide bioavailability and anti-inflammatory effects, which are protective against vascular endothelial dysfunction. These mechanisms collectively translate to reduced progression of coronary artery disease and cerebrovascular pathology. Conversely, frequent interruptions in physical activity might blunt these beneficial hemodynamic stimuli, potentially diminishing cardiovascular adaptive responses.

As the global burden of cardiovascular disease continues to rise amid increasing sedentarism, these findings carry urgent relevance. Public health initiatives historically encourage adults to meet minimal step count or physical activity thresholds, often without emphasizing the structuring of movement. This research advocates a paradigm shift, suggesting that organizing daily activity into longer, continuous walking periods may yield superior benefits, especially critical among those with low baseline activity.

The implications extend beyond clinical advice to influence wearable fitness technology recommendations and digital health interventions. Guidance algorithms could prioritize or gamify sustained walking sessions rather than merely total step accumulation, potentially enhancing user engagement and health impact. Furthermore, urban planning and community design supporting safe, accessible environments for uninterrupted walking could amplify these benefits at a population level.

This pioneering investigation ultimately redefines the quantitative and qualitative dimensions of physical activity necessary for optimizing cardiovascular health. While maintaining total daily steps remains important, emphasizing bout length offers a novel, actionable lever that individuals and healthcare providers can utilize to reduce premature mortality and cardiovascular events. Future research to explore the underlying biological processes and verify these associations across diverse populations will further consolidate these transformative insights.

In summary, this comprehensive study elucidates that it is not only how much one moves but how one moves that matters critically to long-term heart health. For suboptimally active adults, embracing one long walk a day rather than fragmented short walks emerges as a superior strategy to significantly decrease mortality risk and cardiovascular disease, marking a pivotal advancement in the science of physical activity and preventive medicine.

Subject of Research: People

Article Title: Step Accumulation Patterns and Risk for Cardiovascular Events and Mortality Among Suboptimally Active Adults

News Publication Date: 28-Oct-2025

Web References: 10.7326/ANNALS-25-01547

Keywords: Cardiovascular disease, Physical exercise

Ultra-processed foods, characterized by industrial formulations typically high in sugars, unhealthy fats, and additives, have increasingly been scrutinized for their contribution to the burgeoning rates of obesity worldwide. While epidemiological studies routinely associate high UPF consumption with excess body weight, a perplexing observation persists: not all individuals consuming greater amounts of UPFs develop obesity. This heterogeneity has propelled researchers to hypothesize a modifying role of genetic susceptibility, yet empirical evidence integrating precise genetic risk measurements with long-term dietary intake in childhood has been scarce—until now.

Drawing on the rich, longitudinal data of the Avon Longitudinal Study of Parents and Children (ALSPAC) cohort in England, researchers examined over 3,000 participants who were followed meticulously from age 7 through 24. The study uniquely quantified UPF intake at age 7 through comprehensive food diaries categorized using the rigorous NOVA classification system, which stratifies foods based on their level of processing. Simultaneously, the genetic predisposition to obesity was quantified by constructing a polygenic score (PGS) for body mass index, utilizing cutting-edge algorithms such as LDpred2 for high-resolution risk prediction. This multidimensional approach allowed for unprecedented insights into how diet and genetics interplay over nearly two decades.

The findings are both compelling and intricate. Statistical modeling revealed that for every 10% increase in total energy intake sourced from UPFs at age 7, there was a corresponding increase of 0.21 kg/m² in BMI by age 24. This association remained robust even after adjusting for potential confounders including physical activity, socioeconomic status, baseline BMI, and overall energy intake levels—underscoring the independent deleterious impact of UPFs on long-term adiposity. However, this average effect masks a revealing interaction with genetic risk.

When dissecting the data by genetic susceptibility tiers, an unexpected pattern emerged. The positive association between childhood UPF consumption and early-adulthood obesity was significantly amplified only in individuals within the highest decile of BMI polygenic scores. For these genetically predisposed children, a 10% increase in energy from UPFs translated into a striking 0.74 kg/m² increase in BMI at 24, a magnitude roughly triple the average effect size observed across the entire cohort. Conversely, children with lower genetic risk showed no significant association, suggesting their metabolic resilience or alternative compensatory mechanisms against the obesogenic effects of ultra-processed diets.

This gene-diet interaction hypothesis carries profound implications for precision nutrition in pediatric populations. It suggests that blanket dietary guidelines—while beneficial—may fail to address individual vulnerabilities that stem from inherited genetic architecture. The findings advocate for incorporating polygenic risk scoring into early-life dietary assessments, empowering clinicians and public health practitioners to tailor interventions that prioritize restricting UPF intake among genetically susceptible children, potentially staving off lifelong obesity trajectories.

Understanding the mechanisms linking UPF consumption to obesity and their modification by genetics requires delving into diet-induced alterations in metabolism and gene expression. Ultra-processed foods, often hyper-palatable and energy-dense, may promote excessive caloric ingestion and metabolic dysregulation. In genetically predisposed individuals, variations in genes regulating appetite, fat storage, and energy expenditure might exacerbate the response to such diets, leading to a convergence of environmental and biological drivers of adiposity. Future research integrating genomics, epigenetics, and metabolomics could elucidate these pathways, offering new therapeutic targets.

The study also highlights the unique advantage of longitudinal cohort designs in unpacking complex chronic disease etiologies. By capturing dietary behaviors in early childhood and linking them with adult health outcomes while controlling for baseline confounders, the research delineates a temporal and potentially causal relationship rather than mere cross-sectional associations. The application of state-of-the-art genetic scoring methods further strengthens causal inference, positioning this work at the vanguard of nutritional epidemiology.

Beyond academic significance, these findings resonate with societal and policy-level priorities. The ubiquity and aggressive marketing of ultra-processed foods to children raise concerns about exposing vulnerable populations to early risk factors for obesity and associated comorbidities such as diabetes and cardiovascular disease. Policies aimed at reducing children’s access to UPFs and promoting whole, minimally-processed foods could have disproportionate benefits in genetically high-risk subgroups, amplifying public health impact.

Importantly, while the study was rigorously conducted in a UK-based cohort with predominantly European ancestry, generalizability to more diverse populations warrants further exploration. Genetic architecture and dietary patterns vary globally; thus, replication studies in different ethnic and socioeconomic contexts are crucial to validate and extend these findings. Moreover, the reliance on food diaries, while comprehensive, introduces potential reporting biases that future research could mitigate using objective biomarkers of dietary intake.

Ethical considerations arise when integrating genetic risk profiling into pediatric nutrition counseling. Issues of consent, data privacy, and potential stigmatization must be addressed transparently. Nonetheless, the promise of personalized preventive strategies that could transform childhood obesity prevention justifies advancing this research agenda with careful safeguards and equity-focused frameworks.

In summation, this pioneering study compellingly demonstrates that the adverse impact of ultra-processed food consumption on obesity risk is not uniform across children but is significantly modulated by inherited genetic susceptibility. Such gene-environment interplay underscores the necessity of moving beyond “one-size-fits-all” recommendations towards dynamic, individualized nutrition strategies to curb the obesity epidemic effectively. As the science of nutrigenomics matures, integrating genetic risk with lifestyle factors promises a new era of tailored preventive medicine.

Looking forward, future investigations should strive to untangle the interactions of UPFs with other genetic and epigenetic factors, explore mechanisms underlying metabolic resilience in low-risk individuals, and test the efficacy of genotype-informed dietary interventions in randomized controlled trials. Such endeavors will propel public health into a future where early, precise, and personalized actions can alter the course of non-communicable diseases worldwide.

The emergent narrative from this research illuminates the convergence of modern genomic science with classical nutritional epidemiology, breaking new ground in understanding how early dietary exposures and inherited biology coalesce to shape lifelong obesity risk. This synergy provides a powerful framework for researchers, clinicians, and policymakers grappling with one of the most pressing health crises of our time.

Subject of Research: Childhood ultra-processed food consumption, genetic susceptibility, and obesity risk in early adulthood.

Article References:
Abstracts from the 10th meeting of the Association for the Study of Obesity: UK Congress on Obesity 2025.
Int J Obes 49 (Suppl 1), 1–45 (2025). https://doi.org/10.1038/s41366-025-01880-9

Image Credits: AI Generated

The investigators constructed a sophisticated lifetime simulation model integrating comprehensive datasets, notably the Systolic Blood Pressure Intervention Trial (SPRINT) and the National Health and Nutrition Examination Survey (NHANES), alongside meta-analytic inputs from the broader cardiovascular literature. The model projected long-term cardiovascular outcomes including incidences of myocardial infarction, ischemic stroke, and heart failure under different systolic blood pressure targets: less than 140 mm Hg, less than 130 mm Hg, and less than 120 mm Hg. Importantly, this analytical framework did not overlook the consequential spectrum of treatment-associated adverse events such as falls, acute kidney injury, hypotension, and bradycardia, thereby providing a balanced perspective on intensive antihypertensive therapy.

A critical innovation of this study lies in the explicit incorporation of real-world measurement inaccuracies in systolic blood pressure readings. Blood pressure measurement is notoriously prone to variability due to operator technique, device calibration, patient positioning, and biological fluctuations. By integrating these error rates observed in everyday clinical settings, the researchers added a vital layer of ecological validity to their cost-effectiveness analysis, ensuring that their findings remain applicable outside tightly controlled trial environments.

The simulation revealed that even when accounting for these common measurement errors, the aggressive target of <120 mm Hg consistently prevented a greater number of debilitating cardiovascular events compared to the more lenient <130 mm Hg target. This outcome signifies a paradigm shift, implying that achieving stringent blood pressure control confers profound long-term benefits that substantially outweigh the concerns raised by potential overtreatment or clinical measurement variability.

However, the intensification of therapy to reach the lowest systolic parameters was not without trade-offs. Adverse events related to intensified pharmacotherapy saw an uptick in the simulation, including an increased risk for falls in older adults—a clinically significant concern given the morbidity associated with fall-related fractures—alongside episodes of renal hypoperfusion manifesting as kidney injury, instances of symptomatic hypotension, and incidences of bradycardia. These nuances highlight the necessity for personalized clinical judgment, tailoring treatment intensity to the individual risk profiles and preferences of patients.

Economic considerations further enrich the study’s implications. While the <120 mm Hg treatment goal unavoidably increased healthcare utilization—reflected in greater antihypertensive drug consumption and more frequent clinical monitoring visits—cost-effectiveness analyses using quality-adjusted life years (QALYs) demonstrated the intervention’s value. Specifically, the cost per QALY gained at the intensive target was approximately $42,000, a figure well within commonly accepted thresholds for healthcare interventions, thereby affirming that tighter blood pressure control yields not only clinical but also economic benefits.

Karen Smith, PhD, an investigator at Brigham and Women’s Hospital and the study’s lead author, highlights the clinical confidence these findings should inspire. “Our data suggest that for patients at elevated cardiovascular risk, pursuing a systolic blood pressure target below 120 mm Hg is both clinically advantageous and economically rational,” Smith states. “This conclusion holds even under typical measurement error conditions, reinforcing the robustness of intensive blood pressure management strategies in real-world practice.”

Nevertheless, Smith cautions that the research focuses on population-level analysis and cost-effectiveness rather than individualized treatment recommendations. The increased incidence of adverse effects with more aggressive therapy means that “intensive blood pressure control will not be optimal for every patient.” She advocates for shared decision-making between clinicians and patients, emphasizing a nuanced appraisal of risks, benefits, and patient values when choosing an appropriate therapeutic target.

Additional contributors to the study include Thomas Gaziano, Alvin Mushlin, David Cutler, Nicolas Menzies, and Ankur Pandya, who collectively brought expertise in epidemiology, biostatistics, health economics, and clinical medicine to bear on this multifaceted investigation. The interdisciplinary nature of the research underscores the complexity inherent in balancing treatment intensity and adverse event risk in hypertension management, a challenge central to public health policy.

Funding for this important research was provided by the U.S. National Science Foundation and the National Institute of Neurological Disorders and Stroke, signaling robust support from leading scientific institutions dedicated to advancing cardiovascular health. Their involvement reinforces the study’s methodological rigor and relevance to national health priorities.

This publication arrives at a pivotal moment in cardiovascular medicine, where guidelines continue to evolve amid emerging evidence. By quantifying the real-world impact of intensive blood pressure targets and factoring in common clinical challenges such as measurement error and safety concerns, the study offers a comprehensive perspective that could influence future hypertension guidelines and inform clinical practice at large.

In conclusion, while intensified systolic blood pressure control to levels below 120 mm Hg comes with a nuanced risk-benefit profile, this research substantiates its superiority in preventing major cardiovascular events and offers a cost-effective strategy for managing high blood pressure. Importantly, these findings advocate for personalized therapeutic plans that consider patients’ unique clinical contexts and treatment goals, heralding a more refined approach to hypertension care in the years ahead.

Subject of Research: People
Article Title: Effect of systolic blood pressure measurement error on the cost-effectiveness of intensive blood pressure targets
News Publication Date: 18-Aug-2025
Web References: https://www.acpjournals.org/doi/10.7326/ANNALS-25-00560
References: Smith KC et al. “Effect of systolic blood pressure measurement error on the cost-effectiveness of intensive blood pressure targets” Annals of Internal Medicine DOI: 10.7326/ANNALS-25-00560
Keywords: Hypertension, Blood pressure, Cost effectiveness

Led by Sharon DeWitte, a professor at the University of Colorado Boulder’s Institute of Behavioral Science and Department of Anthropology, the new research probes a question that resonates far beyond the medieval era: how does malnutrition during early life influence an individual’s health trajectory well into adulthood? Contrary to longstanding assumptions, the findings reveal a complex and nuanced relationship between childhood nutritional stress and later life survival, challenging the notion that early deprivation unequivocally undermines health over the long term.

The research team focused their investigation on chemical signatures secreted in dental tissues—specifically, the isotopic composition within the dentine of adult teeth. Nearly 275 individuals who had been buried in cemeteries across England before, during, and after the Black Death were examined. This sampling included the notorious East Smithfield Black Death Cemetery in London, a mass burial site opened in 1348, where plague victims were interred en masse without the usual funerary rites.

Isotopes of carbon and nitrogen embedded in dentine act as biochemical archives, preserving records of dietary intake and physiological stress during the formative years of life. When the body encounters periods of malnutrition, it begins metabolizing its own fat and muscle reserves, shifting the isotope ratios in ways detectable centuries later. By analyzing these markers, DeWitte and her colleagues could retrospectively assess nutritional stress experienced by individuals during infancy and childhood, correlating those early life hardships with mortality patterns during the tumultuous years marked by plague outbreaks.

Surprisingly, the study uncovered that individuals who endured nutritional stress early in life exhibited higher rates of survival during acute health threats like the Black Death, at least up until around age 30. This counterintuitive advantage suggests that early deprivation may induce physiological and metabolic adaptations that confer resilience against epidemic diseases in youth and young adulthood. However, the data also indicate that these benefits do not extend indefinitely; as individuals aged into middle and late adulthood, those same early-life hardships appeared to predispose them to poorer health outcomes.

DeWitte interprets these findings through the lens of developmental plasticity. When bodies face famine or nutritional scarcity during critical periods of growth, they may recalibrate development to optimize energy usage and survival in harsh environments. Such “programming” could manifest as altered metabolism, enabling more efficient utilization of limited calories. While advantageous in periods of scarcity, these adaptations may become maladaptive if the individual later encounters an environment rich in resources—offering a possible explanation for the increased disease susceptibility observed in later life stages.

This theory gains further traction when considering the post-Black Death societal upheavals in England. Following the dramatic population decline, survivors often found themselves in improved economic circumstances, with labor shortages driving up wages and access to food. The juxtaposition of a physiologically “scarred” metabolism shaped by childhood scarcity against newfound nutritional abundance may have precipitated chronic health problems, including cardiovascular diseases associated with excessive fat accumulation.

Beyond providing intriguing evolutionary and historical insights, this research has profound implications for modern epidemiology and public health. The Black Death, with its vast mortality variability across regions of Europe—from roughly 30% in parts of England to 75% in Florence, Italy—serves as a natural experiment illuminating how early life conditions interact with social and environmental factors to influence longevity and disease resistance. Understanding these mechanisms could inform strategies to mitigate health disparities that persist today alongside social inequalities.

It is important to note, as DeWitte emphasizes, that the study’s conclusions are drawn from an archaeological context where critical biographical details are lacking. Without precise medical records or cause-of-death information, fully disentangling the myriad factors influencing survival and health remains challenging. Nonetheless, the bioarchaeological approach adopted here—intersecting isotopic chemistry with demographic analyses—opens the door to refining our grasp of how childhood experiences echo through a lifetime in subtle yet significant ways.

This line of inquiry dovetails with modern clinical research that links low birth weight and early life malnutrition with elevated risks of metabolic syndrome, diabetes, and heart disease. By grounding such observations within a deep historical framework, DeWitte’s work enriches our understanding of the biological underpinnings that bridge past and present health phenomena. Moreover, it highlights the complex, sometimes paradoxical, nature of adaptation—where traits beneficial at one life stage may portend vulnerabilities at another.

Crucially, this research transcends academic curiosity by underscoring the potential for targeted social interventions. Identifying periods of developmental vulnerability and environmental mismatch could inform public health policies aiming to reduce disease burden in today’s populations, particularly those affected by poverty and nutritional insecurity. DeWitte expresses hope that lessons gleaned from 700 years ago might inspire efforts to address health inequalities that continue to challenge modern society.

At its core, this study reiterates a fundamental question that has perennially fascinated scientists and clinicians alike: why do some individuals thrive in the face of adversity while others succumb, even within the same social and ecological milieu? While definitive answers remain elusive, the evidence suggests that early life nutritional stress imprints upon human physiology in ways that both protect and imperil, with the balance shifting over time and context.

As DeWitte and her collaborators prepare to publish their findings in the esteemed journal Science Advances on July 30, 2025, their work invites renewed attention to the interplay between environment, biology, and health across the human lifespan. It is a compelling reminder that the past, with its tales of survival and loss, continues to inform and illuminate the pathways toward healthier futures.

Subject of Research: The influence of childhood nutritional stress on long-term health outcomes in medieval England, using isotopic analysis of dentine to infer early life malnutrition and its effects on mortality during and after the Black Death.

Article Title: Childhood nutritional stress and later-life health outcomes in medieval England: evidence from incremental dentine analysis.

News Publication Date: Not explicitly stated; article scheduled for publication on July 30, 2025.

Web References:

• Science Advances Journal – DOI: 10.1126/sciadv.adw7076
• Institute of Behavioral Science, University of Colorado Boulder: https://ibs.colorado.edu/
• Department of Anthropology, University of Colorado Boulder: https://www.colorado.edu/anthropology

References:
DeWitte, S.N., Beaumont, J., Towers, J., Walter, B., & Brennan, E. (2025). Childhood nutritional stress and later-life health outcomes in medieval England: evidence from incremental dentine analysis. Science Advances. DOI: 10.1126/sciadv.adw7076.

Keywords: Black Death, Yersinia pestis, malnutrition, childhood nutrition, dentine isotopes, medieval England, bioarchaeology, long-term health, developmental plasticity, epidemiology, metabolic adaptation, mortality patterns.

His lab’s inquiries center around the isoprenoid pathway, a metabolic route through which the human body synthesizes cholesterol. Cholesterol is not merely a byproduct of metabolism; it is a crucial component involved in numerous physiological processes, including cellular membrane integrity and hormone production. Statins, a class of drugs commonly prescribed to manage high cholesterol levels, primarily function by inhibiting this pathway, effectively reducing the concentration of five-carbon precursors that play a pivotal role in cholesterol synthesis. Despite their widespread use and clinical significance, the full range of implications associated with these five-carbon precursors remains largely obscure—a gap that Baccile’s research seeks to bridge.

Baccile notes the irony in the lack of understanding surrounding the very precursors targeted by such commonly prescribed medications. As he posits, statins are effective largely because they interfere with this five-carbon metabolic pathway, yet the biological roles of these intermediate molecules are not comprehensively mapped out. Therefore, Baccile’s ambitious research agenda aims to uncover what else these precursors accomplish within the metabolic maze of human physiology.

Leveraging unique derivatives of two five-carbon precursors, his team is set to introduce these molecules into cellular environments to probe their potential effects. By experimenting with these derivatives, the Baccile Lab intends to unravel the multifaceted roles of five-carbon metabolism. This innovative approach not only aims to clarify the molecules’ functions but also aspires to harness control over their distribution and activity within cellular systems. Such discoveries could mark a significant advancement in our comprehension of metabolic processes that underlie various health issues, from dyslipidemia to systemic diseases.

The pioneering nature of Baccile’s work cannot be overstated. His laboratory holds the distinction of being the first to develop functional derivatives of five-carbon precursors suitable for experimental use. This novel capability opens up exciting avenues for exploration in the metabolism of cholesterol and the broader implications it may have on human health. By better understanding the roles of these crucial molecules, Baccile’s research has the potential to redefine therapeutic strategies targeting fundamental metabolic pathways.

Through the NIH MIRA grant, Baccile hopes to not only advance the scientific community’s understanding of human biology but also foster collaborative relationships with international research teams. The competitive nature of academic research has made it increasingly imperative for scientists worldwide to join forces in tackling the complexities of the microbiological landscape. Baccile advocates that when engaging in scientific discovery, researchers must navigate uncharted territories, particularly regarding human cellular physiology.

One of the salient elements of Baccile’s vision relates to the potential impacts of his research on pressing health issues such as cardiovascular diseases, neurodegenerative disorders, and various forms of cancer. Understanding the intricate operations of five-carbon precursors could illuminate novel pathways for therapeutic intervention, paving the way for more targeted treatments aimed at prevalent health concerns. As Baccile articulately explains, knowledge gained through research contributes significantly to the advancement of medical therapies, potentially leading to improved health outcomes for numerous patient populations.

Moreover, the MIRA grant is not solely a funding mechanism for Baccile’s research—it also facilitates the continuation and expansion of his community college research fellowship program. This initiative offers summer research opportunities for students from local community colleges who aspire to transfer to a four-year institution. Baccile’s commitment to fostering the next generation of scientific talent embodies the educational ethos underpinning academic research environments.

The grant’s provision of $1.8 million over a five-year duration presents an excellent opportunity not only to propel Baccile’s research forward but also to contribute to the educational pipeline of future scientists. By engaging undergraduate and community college students in meaningful research experiences, Baccile is effectively investing in the future of scientific inquiry and innovation. He emphasizes that a crucial responsibility of academic research labs is nurturing students and future scientists who will sustain the quest for knowledge and stimulate further discoveries in biology and medicine.

Through this blend of groundbreaking research and educational mentorship, Baccile stands at the forefront of bridging the gap between basic science and clinical applications in human health. His efforts to understand how five-carbon metabolism influences various physiological functions could potentially lead to the development of novel treatment strategies that address significant health challenges. The implications of this research extend far beyond the laboratory setting and could reshape clinical practices in the years to come.

In summary, Baccile’s MIRA award underscores the importance of comprehensive approaches to scientific inquiry—one that melds deep research aspirations with a commitment to education and mentorship. As research teams around the globe embark on similar missions, the ongoing exploration of metabolic pathways such as the isoprenoid pathway promises to enrich our understanding of human health and refine therapeutic frameworks aimed at combating chronic diseases. The investment in Baccile’s research exemplifies the NIH’s commitment to supporting innovative and high-impact science, a crucial element in the pursuit of advancing public health.

Subject of Research: Five-carbon metabolism and its implications for human health
Article Title: University of Tennessee’s Joshua Baccile Awarded NIH Grant to Explore the Depths of Human Metabolism
News Publication Date: [Insert Date]
Web References: [Insert URLs]
References: [Insert References]
Image Credits: University of Tennessee

Keywords

Discovery research, Neural pathways, Metabolic networks, Molecular networks