The immune system is not a single switch that turns on during illness. It is a distributed network involving immune cells, signalling molecules, blood vessels, the nervous system and endocrine organs. During an acute response, immune cells can release cytokines and other mediators that coordinate inflammation, alter metabolism and recruit additional defences. These processes are essential for controlling infection and repairing tissue, but their intensity and timing matter. An insufficient response can leave threats unchecked, while excessive or poorly regulated inflammation can damage healthy tissue. Because the brain receives information about immune activity and can alter autonomic and hormonal states, scientists have increasingly investigated whether cognitive processes can influence this balance. Mizrachi and colleagues focus on voluntary attention as one such process: a mental operation that can be intentionally directed and sustained.

The study’s central question is more precise than whether “positive thinking” improves immunity. It concerns whether attention itself can act as a regulatory input during an immediate immune response. Voluntary attention requires the brain to allocate limited processing resources toward selected information while reducing the priority of competing signals. When this allocation is directed toward bodily sensations, internal physiological information may become more salient. When attention is directed elsewhere, signals from the body may be processed differently, even though they do not disappear. In principle, these changes could affect autonomic pathways linking the brain to organs and immune tissues, as well as the hypothalamic–pituitary–adrenal axis, which coordinates stress-related hormonal responses. The research therefore addresses a mechanistic question at the intersection of cognitive neuroscience, psychophysiology and immunology.

Acute immune responses are especially useful for testing this relationship because they unfold over a defined period and can be measured through biological markers. Researchers can examine changes in circulating immune cells, cytokines, inflammatory proteins or other physiological indicators before and after an experimentally controlled challenge. Such measurements do not simply reveal whether the immune system is “strong” or “weak”; they provide a time-sensitive picture of how the response develops. A change in one marker may reflect altered immune activation, redistribution of cells between tissues and blood, or a shift in inflammatory signalling. Interpreting these results requires careful attention to timing, baseline differences and the distinction between correlation and causation. The importance of the new work lies in testing a cognitive variable under conditions in which immune activity can be observed directly, rather than relying only on long-term associations between psychological traits and health outcomes.

The proposed link between attention and immunity may operate through several biological routes. The autonomic nervous system can influence immune organs through sympathetic and parasympathetic signalling, changing the release of neurotransmitters and the behaviour of immune cells. Stress hormones can also modify cytokine production and alter the movement of immune cells through the bloodstream. In addition, attention can change breathing, muscle tension, heart rate and the interpretation of bodily sensations, all of which may feed back into physiological regulation. These pathways are not independent. A person who focuses on an internal sensation may notice it more clearly, experience it as more intense or interpret it differently; each of those responses can influence autonomic state. The study does not imply that attention can consciously command every immune cell. Rather, it suggests that deliberate mental allocation may enter existing regulatory circuits connecting cognition, physiology and inflammation.

The findings are likely to attract attention because they challenge a familiar division between “mental” and “physical” health. Modern medicine already recognises that sleep, stress, pain, emotion and social experience can influence inflammatory biology. However, voluntary attention is a particularly interesting factor because it is, at least in principle, trainable in real time. Practices such as mindfulness, focused breathing and certain forms of biofeedback are built around directing attention, but their biological effects have often been difficult to separate from relaxation, expectation, breathing changes or broader reductions in stress. By isolating attention as a behavioural variable, the research may help scientists determine which components of these practices matter, for whom and under what circumstances. The result is not a prescription to concentrate on illness, but a possible clue about how mental training could be studied with the same experimental precision applied to drugs and other interventions.

At the same time, the findings should not be inflated into a claim that people can think themselves healthy or that attention can replace vaccination, antimicrobial treatment or clinical care. Acute immune regulation is not equivalent to protection from infection, and a laboratory change in an inflammatory marker does not automatically translate into fewer illnesses or faster recovery. Immune responses are context-dependent: a reaction beneficial during one challenge may be harmful during another. The direction, size and duration of any attention-related effect are therefore crucial. It is also possible that attention influences subjective symptoms more strongly than underlying pathology, or that biological changes occur without a meaningful effect on health outcomes. These distinctions will need to be tested in larger studies with diverse participants, repeated measurements and clinically relevant endpoints.

Future research may also clarify whether the effect depends on what people attend to, how long they sustain attention and how they interpret the signals they notice. Attention to bodily sensations is not identical to worry, rumination or deliberate nonjudgmental observation. Each may engage overlapping but distinct neural and physiological processes. Researchers will need to distinguish attention from expectation, perceived control, emotional arousal and changes in breathing or movement. Neuroimaging, continuous heart-rate and respiratory monitoring, endocrine measurements and detailed immune profiling could help map the pathway from an instruction in the laboratory to a change in immune biology. Studies conducted during vaccination, controlled inflammatory challenges or naturally occurring infections could establish whether the phenomenon generalises beyond a single experimental setting. It will also be important to determine whether training produces lasting changes or only short-lived responses during the task itself.

The broader message is that the immune system may be more dynamically integrated with conscious behaviour than traditional diagrams suggest. The brain constantly receives information from the body, while the body responds to signals generated by neural activity, hormones and behaviour. Voluntary attention may be one of the mechanisms that adjusts this two-way exchange, not by overriding immune biology but by changing the conditions under which immune responses are initiated and regulated. Mizrachi, Rottem and Rozenkrantz’s study offers a framework for investigating that possibility in humans, where cognition, physiology and disease risk are inseparable in everyday life. The next challenge is to determine how robust the effect is, which biological pathways carry it and whether carefully designed attention-based interventions can produce reliable benefits without oversimplifying the extraordinary complexity of the immune system.

Subject of Research: The relationship between voluntary attention and acute immune responses in humans

Article Title: Voluntary attention regulates acute immune responses in humans

Article References:

Mizrachi, N., Rottem, M. & Rozenkrantz, L. Voluntary attention regulates acute immune responses in humans. Nat Hum Behav (2026). https://doi.org/10.1038/s41562-026-02541-1

Image Credits: AI Generated

DOI: https://doi.org/10.1038/s41562-026-02541-1

Keywords: voluntary attention, acute immune response, human physiology, neuroimmunology, inflammation, brain–immune communication, cognitive control, cytokines

The research team, led by Hemal H. Patel, Ph.D., a professor of anesthesiology and a research career scientist at the Veterans Affairs San Diego Healthcare System, utilized advanced neuroimaging and blood-based assays to capture the dynamic effects of the intensive retreat. Over a seven-day residential program, 20 healthy adult participants engaged in approximately 33 hours of guided meditation and group healing exercises, underpinned by an “open-label placebo” methodology. This approach, ethically transparent, leveraged participants’ expectations and social connection to potentiate healing responses without undisclosed pharmacological agents.

Central to the investigation was the use of functional magnetic resonance imaging (fMRI), a sophisticated neuroimaging technique that captures real-time brain activity by measuring blood oxygenation changes. Pre- and post-retreat scans revealed a notable attenuation of activity within brain regions traditionally associated with internal dialogue and self-referential thought, colloquially termed “mental chatter.” This functional downregulation culminated in enhanced overall brain network efficiency, an indicator of streamlined cognitive processing and potentially heightened attentional control.

Beyond neuroimaging, the study probed peripheral biological markers by analyzing participants’ blood plasma extracted before and after the retreat. When applied to cultured neurons in vitro, post-retreat plasma induced remarkable neuroplasticity, evidenced by elongation of dendritic branches and formation of novel synaptic connections. This result not only demonstrates a systemic upregulation of factors promoting neuronal growth but also supports the concept that circulating bioactive molecules can communicate retreat-induced signals from the periphery to the central nervous system.

Metabolic profiling illuminated a significant shift toward increased glycolytic activity, suggesting that cells became more metabolically adaptable and efficient at energy utilization after the retreat. This metabolic reprogramming is indicative of a physiological state that balances energy demands and mitochondrial function, parameters increasingly recognized for their roles in neurocognitive health and resilience against metabolic stress.

Importantly, the study identified an elevation in endogenous opioid peptides within the bloodstream post-retreat. These naturally produced analgesics bind to opioid receptors, mediating pain relief without the side effects associated with exogenous opioids. Their increase underscores a biological mechanism through which mind-body practices can activate the body’s intrinsic pain modulation systems, offering promising avenues for non-pharmacological management of chronic pain.

Intriguingly, the immune system exhibited a nuanced activation profile. The retreat simultaneously enhanced inflammatory and anti-inflammatory signaling pathways, reflecting a complex adaptive immune response rather than a simplistic upregulation or suppression. This dual modulation posits that meditation and associated practices may calibrate immune function to improve its responsiveness and homeostasis, potentially impacting autoimmune conditions and inflammatory diseases.

At the molecular level, comprehensive analyses uncovered shifts in small RNA populations and gene expression within circulating blood cells. These alterations predominantly affected signaling pathways integral to brain function, suggesting that the retreat influenced systemic gene regulatory networks with downstream effects on neurobiology. This molecular plasticity further cements the relationship between psychological practices and genomic modulation.

A salient psychological dimension of the study involved assessing participants’ subjective experiences via the Mystical Experience Questionnaire (MEQ-30). Participants reported a statistically significant increase in scores post-retreat, reflecting deeper feelings of unity, transcendence, and altered states of consciousness frequently described as “mystical.” Correlations between MEQ scores and enhanced brain network integration highlight that the subjective intensity of these experiences may parallel measurable biological integration across neural circuits.

This convergence of findings echoes neural patterns previously documented under the influence of psychedelic substances such as psilocybin. Patel’s assertion that meditation alone replicates these connectivity and experiential states without pharmacological intervention opens a promising scientific dialogue about the therapeutic potential of contemplative neuroscience paradigms.

The implications of these results extend well beyond anecdotal wellness narratives, providing a robust biological framework for how non-drug mind-body interventions may augment mental and physical health. By leveraging neuroplasticity and modulating immune and metabolic function, such practices are poised to support emotional regulation, resilience to stress, and potentially alleviate symptoms of psychiatric and chronic pain disorders through endogenous systems.

While the current research provides strong preliminary evidence among healthy individuals, the authors emphasize the necessity for rigorous clinical trials in diverse patient populations. Investigations focusing on individuals with chronic pain, mood dysregulation, or immune system dysfunction will be critical to define therapeutic parameters, dosage, and long-term benefits of such multidimensional retreats.

Future research directions aim to disentangle the individual contributions of meditation, cognitive reconceptualization, and open-label placebo components within the retreat’s framework. Additionally, longitudinal studies will be pivotal in examining the durability of biological changes and whether repeated exposure potentiates or sustains health-promoting neuroimmune adaptations.

This novel intersection of psychology, neuroscience, and immunology demonstrates how intentional cognitive engagement and social connectedness can embed measurable “biological fingerprints” within the body. The emerging paradigm challenges the longstanding dualistic separation between mind and body, reaffirming that conscious experience is intricately woven into the fabric of physiological health.

In sum, this study catalyzes a paradigm shift by empirically substantiating that carefully structured mind-body interventions can evoke systemic biological changes. It heralds a new frontier where the ancient art of meditation, integrated with rigorous scientific methodology, offers tangible avenues to enhance human health and well-being, bridging consciousness and biology in transformative ways.

Subject of Research: Neurobiological and systemic physiological effects of an intensive mind-body retreat incorporating meditation and healing practices.

Article Title: Not specified in the provided content.

News Publication Date: Not specified in the provided content.

Web References:
https://www.doi.org/10.1038/s42003-025-09088-3

References:
Details not provided beyond the DOI-linked publication in Communications Biology.

Image Credits:
Alex Jinich-Diamant/UC San Diego Health Sciences

Keywords:
Meditation, Neuroscience, Neuroplasticity, Mind-body practices, Immune modulation, Endogenous opioids, Metabolic adaptation, Functional MRI, Psychological well-being, Chronic pain, Integrated brain networks, Mystical experience

At its core, the investigation delves deep into the biopsychosocial substrates that govern emotional responses, focusing on how differing mind–body connection phenotypes modulate the processing and regulation of affective stimuli. Emotional reactivity, a fundamental component of human experience, encompasses the initial intensity and threshold of emotional responses, while regulation encompasses the strategies deployed to modulate these responses effectively. The authors posit that identifying distinct mind–body connection profiles is essential for unraveling individual variability in these emotional processes, with potential implications for personalized mental health interventions.

This rigorous study employed a multifaceted methodological framework that combined psychophysiological assessments, self-reported cognitive-affective measures, and advanced analytical modeling. By engaging a large sample of neurologically typical adults, the researchers ensured that their findings would represent normative ranges of emotional functioning, thereby establishing a robust baseline for interpreting deviations associated with psychopathology. Vital in the design was the integration of wearable biosensors capturing heart rate variability (HRV), skin conductance, and respiratory patterns, which serve as proxies for autonomic nervous system activity—the physiological substrate of the mind–body relationship.

Crucially, the research team implemented sophisticated clustering algorithms to categorize individuals into distinct mind–body connection profiles, delineated by their physiological responsiveness and cognitive interoceptive awareness. Interoception, a growing field in emotion science, refers to the perception and interpretation of internal bodily signals. The study draws from emerging literature suggesting that enhanced interoceptive sensitivity enables finer tuning of emotional awareness, which in turn informs effective regulation. Participants exhibiting high interoceptive awareness demonstrated more adaptive patterns of emotional response, characterized by modulated autonomic activation and more strategic deployment of cognitive reappraisal.

One of the pivotal insights emerging from this study is the identification of heterogeneity in emotional reactivity trajectories that correlate with specific mind–body profiles. For instance, some individuals with heightened physiological sensitivity displayed amplified emotional responses but were capable of engaging regulatory tactics that attenuated maladaptive outcomes. Conversely, another subgroup showed blunted physiological reactions paired with diminished cognitive control, indicative of potential vulnerabilities to emotional dysregulation. These dichotomies underscore the complexity of mind–body interactions and challenge simplistic models that treat emotional reactivity as a uniform construct.

The implications of these findings extend beyond theoretical models into pragmatic realms of clinical practice and mental wellness. By leveraging the detailed mapping of mind–body profiles, mental health practitioners may be better equipped to tailor therapeutic approaches such as biofeedback, mindfulness-based interventions, and cognitive-behavioral therapy. For example, individuals with low interoceptive awareness but high physiological reactivity might benefit from interventions emphasizing somatic awareness and calming techniques, whereas those with cognitive deficits in emotion regulation may require targeted cognitive restructuring.

Furthermore, the study’s nuanced exploration of autonomic nervous system markers situates it at the forefront of psychophysiological research. Heart rate variability, often considered an index of parasympathetic nervous system function, emerged as a particularly salient biomarker correlating with successful emotion regulation. The research suggests that interventions designed to enhance HRV, such as controlled breathing exercises and vagus nerve stimulation, could effectively bolster emotional resilience, especially in profiles identified as susceptible to dysregulation.

The integration of cognitive and physiological data also advances the growing paradigm of embodied cognition, emphasizing that emotional experience and regulation are not purely cerebral phenomena but fundamentally shaped by bodily states. This aligns with contemporary theories revealing that the brain continuously interprets internal bodily signals, thus influencing affective and behavioral responses. The study’s empirical evidence strengthens the argument for holistic approaches to mental health that transcend traditional mind-centric models.

What makes this research particularly compelling is its applicability to real-world scenarios where emotional reactivity can significantly impact daily functioning, interpersonal relationships, and overall well-being. By elucidating the fine-grained distinctions in mind–body profiles, the authors provide a scaffold for future research aimed at optimizing mental health outcomes through personalized interventions. The potential for preventive applications is significant, especially in designing screening tools that detect atypical profiles indicative of emerging emotional disorders before clinical symptoms escalate.

It is also notable that this study contributes to bridging the gap between fundamental psychological science and applied health psychology. The use of objective physiological markers in tandem with subjective cognitive assessments offers a multifactorial lens, advancing beyond reliance on self-report measures alone, which can suffer from bias and unreliability. Such an integrative approach underscores the value of multimodal data acquisition and interdisciplinary collaboration in unpacking the complexities of emotion regulation.

Additionally, the international and cross-disciplinary composition of the research team enriches the study’s validity and scope. Drawing expertise from psychology, neuroscience, physiology, and computational modeling, the authors demonstrate that addressing the multifaceted nature of emotional reactivity necessitates convergent methodologies and perspectives. This collaborative ethos mirrors the complexity of human emotion and sets a precedent for future investigations in the domain.

In light of the accelerating technological advances in wearable biosensors and machine learning techniques, this study capitalizes on cutting-edge tools to illuminate the mind–body nexus with unprecedented precision. Such technological integration not only enhances data accuracy but also serves as a foundation for scalable applications in everyday environments, promising accessible and continuous emotional health monitoring.

Finally, the researchers acknowledge the limitations inherent to their work, including the need for longitudinal designs to capture dynamic changes in mind–body profiles over time and across diverse populations. They also call for deeper inquiry into how developmental factors, cultural contexts, and psychopathological states modulate the observed relationships. These future directions underscore the evolving nature of this burgeoning field.

In summation, Van Bael and colleagues’ research represents a seminal contribution to understanding how nuanced profiles of mind–body connectivity influence emotional reactivity and regulation in typical adults. By meticulously unpacking the physiological and cognitive facets underpinning this relationship, the study lays critical groundwork for innovative, individualized approaches to fostering emotional well-being. As emotional disorders continue to pose a global challenge, such insights offer hope for more effective, embodied strategies that honor the complexity of human emotion.

Subject of Research: The role of mind–body connection profiles in emotional reactivity and regulation among typically developed adults.

Article Title: Elucidating the role of mind–body connection profiles in emotional reactivity and regulation amongst typically developed adults.

Article References:
Van Bael, K., Scarfo, J., Suleyman, E. et al. Elucidating the role of mind–body connection profiles in emotional reactivity and regulation amongst typically developed adults. BMC Psychol 13, 916 (2025). https://doi.org/10.1186/s40359-025-03083-3

Image Credits: AI Generated