The trial involved 227 Australian adults aged 18 to 39, a demographic selected because body image concerns peak during these years. Participants were recruited through social media and screened carefully before entry: anyone with a current or recent anxiety or eating disorder, a history of panic attacks, or elevated scores on validated screening instruments for anxiety symptomatology and eating disorder symptoms was excluded. This was a deliberate safety measure, the researchers note, because meditations that focus attention on bodily sensations can occasionally exacerbate anxiety or trigger panic in vulnerable individuals, a phenomenon documented in systematic reviews of meditation-related adverse events. Eligible participants were randomly assigned in a one-to-one ratio, with allocation concealed through an automated computer-generated sequence, to either the meditation intervention or a waitlist control group.

The intervention itself was strikingly simple. Each week, participants in the meditation group received a link to a single 20-minute guided meditation podcast, adapted from the established Mindful Self-Compassion program, with instructions to listen daily. Week one featured the Compassionate Body Scan, which invited participants to notice bodily sensations with kindness, to place a hand over the heart when judgmental thoughts arose, and to return attention to simple physical feeling. Week two offered Affectionate Breathing, combining a body scan with slow, deliberate breaths, in which participants were asked to breathe in kindness for themselves and breathe out kindness toward others. Week three introduced Loving-Kindness Meditation, a practice focused on cultivating warmth toward oneself in response to personal suffering, involving reflections on a self-perceived inadequacy of any kind and the repetition of phrases such as “May I be safe. May I be peaceful. May I be kind to myself. May I accept myself as I am.”

Crucially, none of the meditation scripts contained appearance-related prompts. There were no instructions to think positively about one’s looks, no discussion of beauty standards, and no encouragement to change how participants evaluated their physical appearance. Instead, the practices cultivated the three core components of self-compassion as defined by researcher Kristin Neff: self-kindness, the habit of responding to personal difficulty with gentleness rather than harsh criticism; common humanity, the recognition that struggle and imperfection are universal rather than isolating personal failures; and mindfulness, the capacity to observe one’s emotions without suppression or overwhelm. The researchers wanted to know whether training this general compassionate stance — essentially teaching people to be kinder to themselves — would spill over into how they related to their bodies, without ever targeting body image directly.

The results were clear and, in some respects, surprising. Using intention-to-treat analyses that included all randomised participants and employed multiple imputation to handle missing data, the team ran a series of mixed repeated-measures ANOVAs examining group-by-time interactions across three assessment points: baseline, immediately after the three-week intervention, and six weeks later. The intervention group showed significantly greater improvements than controls in all four outcomes measured: body appreciation, assessed with the Body Appreciation Scale-2; body dissatisfaction, measured with the 16-item Body Shape Questionnaire; self-compassion, assessed with the 26-item Self-Compassion Scale; and positive well-being, captured by the Warwick-Edinburgh Mental Well-Being Scale. Perhaps most importantly, these gains were not fleeting. Improvements were maintained at the six-week follow-up, and the waitlist control group remained essentially stable throughout, suggesting the changes were genuinely attributable to the meditation practice rather than the passage of time or repeated testing.

The trial’s design addressed several gaps in the existing literature. Earlier landmark work, including a widely cited 2015 randomised controlled trial by Albertson and colleagues, demonstrated that self-compassion meditation could increase body appreciation and reduce body dissatisfaction in women with body image concerns, with benefits persisting three months later. A subsequent replication in undergraduate women produced partial support, improving body appreciation and self-compassion but not body dissatisfaction. However, most prior studies focused exclusively on women, or embedded self-compassion training within broader multi-component programs, making it hard to isolate its unique contribution. The present study extended the approach to a broader adult sample — including 39 men and a small number of non-binary participants — and added a six-week follow-up period, offering a more inclusive and longer-horizon test of the intervention’s efficacy.

One of the study’s most intriguing findings concerns dosage. Drawing on skill consolidation theories of psychological change, the researchers hypothesised that people who meditated more frequently would show larger improvements — the assumption being that self-compassion, like any self-regulatory skill, strengthens through repeated practice. To test this, participants reported how many days per week they engaged with the podcasts, and the intervention group indeed meditated significantly more often than controls, averaging just over four days per week. Yet when the team ran pooled linear regression analyses, meditation frequency did not significantly predict changes in any of the four outcomes. Whether someone listened three times a week or every day made little measurable difference to how much their body appreciation, well-being, self-compassion, or body dissatisfaction improved.

The researchers offer several possible explanations. One is that the intervention may have produced a relatively rapid shift in self-orientation, with the development of a more compassionate perspective occurring early and then remaining stable regardless of continued practice frequency. Another possibility is that simple frequency counts fail to capture the qualitative dimensions of engagement — the depth of attention, emotional involvement, or personal relevance of each session — which may matter more than sheer repetition. The team also acknowledges methodological limitations: adherence was measured by self-report rather than objective tracking, which was deliberately avoided to preserve participant privacy and device accessibility, and the three-week window may simply have been too brief to detect dose-response effects. Demand characteristics also cannot be fully ruled out in a waitlist design, which does not control for expectancy effects the way an active comparator such as relaxation training or psychoeducation would.

Exploratory analyses added mechanistic texture to the findings. When the researchers examined change scores across all six subscales of the Self-Compassion Scale, they found that increases in self-kindness were associated with improvements in both body appreciation and positive well-being, as were increases in mindfulness. Notably, reductions in self-judgment — the tendency toward harsh, critical self-evaluation — were linked not only to greater body appreciation and well-being but also, uniquely, to decreases in body dissatisfaction. This distinction may matter, the authors suggest, because body dissatisfaction is notoriously resistant to change and tends to remain stable across adulthood. If reducing the internal critical dialogue is the specific pathway through which self-compassion weakens negative body evaluations, future interventions could be tailored to target self-judgment more directly, potentially unlocking improvements in outcomes that have historically proven stubborn.

The study is not without limitations. Baseline body appreciation scores were significantly higher in the intervention group than in controls, raising questions about randomisation, although the repeated-measures design examining within-person change trajectories mitigates this concern. Attrition reached roughly 35 percent, exceeding what was anticipated, and those who dropped out had lower education levels than completers, though intention-to-treat analyses and minimal other baseline differences reduce the risk of serious bias. The number of male and non-binary participants was too small for subgroup analyses, leaving open the question of whether the intervention works equally well across gender identities. And because the study was not preregistered, and the exploratory subscale correlations were not adjusted for multiple comparisons, those mechanistic findings should be treated as preliminary.

Even with these caveats, the implications are considerable. Self-compassion meditations are scalable, cost-effective, and accessible — deliverable as podcasts to anyone with a smartphone — making them attractive candidates for community, workplace, and digital mental health applications. Populations particularly vulnerable to body image stressors, such as adolescents, athletes, and people exposed to appearance-related scrutiny, may stand to benefit from compassion-based resources that promote acceptance without requiring clinical treatment. The finding that benefits emerged even from a meditation containing no body-focused content at all suggests that cultivating compassionate awareness generally may be sufficient to improve one’s relationship with one’s body. The authors call for future research with larger, more gender-diverse samples, more refined measures of engagement quality, longer follow-up periods extending to three or six months, and active control groups to isolate the specific mechanisms at work. If those follow-ups confirm what this trial suggests, the humble practice of being kind to oneself — for twenty minutes a day, for three weeks — may prove one of the simplest and most broadly applicable tools available for improving how people live inside their own skin.

Cardiovascular disease remains the leading cause of mortality among Black Americans, a disparity exacerbated by socio-economic stressors, healthcare inequities, and psychosocial pressures. This recent trial specifically targeted this vulnerable population by enrolling 200 Black adults diagnosed with cardiovascular disease or identified as having a heightened risk due to traditional factors such as hypertension, diabetes, and elevated cholesterol. The participants were followed for an extended period of up to 14 years, providing a robust data set to evaluate long-term outcomes.

Participants were randomly assigned to either a Transcendental Meditation program or a comprehensive health education intervention modeled on the American Heart Association’s guidelines, which prioritized diet and exercise. While both groups showed promising results in halting the progression of carotid artery atherosclerosis, as assessed by carotid intima-media thickness (cIMT), only those practicing TM exhibited a statistically significant and sustained decline in the actual occurrence of fatal and nonfatal cardiovascular events after 5 and 10 years.

The clinical implications of these findings are profound. TM, a simple, stress-reducing meditation practice, appears to confer substantial cardiovascular protection beyond the conventional benefits of lifestyle education alone. This suggests a physiological mechanism through which TM may mediate favorable changes in autonomic nervous system balance, reducing sympathetic overdrive and lowering systemic inflammation—key pathological drivers in the development and progression of atherosclerosis and myocardial ischemia.

The trial’s lead author, Dr. Keith Norris from UCLA’s David Geffen School of Medicine, emphasized the importance of addressing psychosocial stress as a modifiable risk factor. “Our study highlights the potential of Transcendental Meditation to transform cardiovascular outcomes particularly within marginalized communities facing systemic challenges,” Dr. Norris stated. The randomized nature and extended follow-up period lend strong credence to the reliability of these results, distinguishing this investigation as one of the largest and longest longitudinal trials assessing meditation’s impact on cardiovascular risk.

The senior investigator, Dr. Robert Schneider, Director of Maharishi International University’s Center for Natural Medicine and Prevention, underscored the significance of sustained practice and institutional support. “Participants in the TM group had ongoing access to meditation support beyond the initial year, which may contribute to the durability of cardiovascular benefits.” This ongoing engagement contrasts with the health education group, whose intervention ceased after the initial study period, possibly explaining differences in long-term event reduction.

Mechanistically, TM’s cardiovascular benefits may be linked to its influence on blood pressure regulation, endothelial function, and metabolic parameters. Previous NIH-funded studies have documented TM’s efficacy in reducing hypertension, improving insulin sensitivity, and mitigating inflammatory biomarkers such as C-reactive protein and interleukin-6. This new trial corroborates and extends these findings within a high-risk, real-world cohort.

Furthermore, the observed 65% relative risk reduction in MACE after 5 years in the TM group is clinically significant, rivaling or exceeding many contemporary pharmacological therapies for heart disease prevention. This positions TM as a potentially scalable, low-cost adjunct therapy capable of bridging health disparities through community-based implementation.

Importantly, the carotid intima-media thickness measurements conducted in this study serve as a validated surrogate endpoint, reflecting early atherosclerotic changes that precede clinical events. The similarity in cIMT progression suppression between groups suggests that TM’s superior effect on actual cardiovascular outcomes may involve additional pathways, possibly neuroendocrine or psychosocial, warranting further mechanistic exploration.

The study was conducted at King-Drew Medical Center in Los Angeles, a facility serving many underserved minority populations, enhancing the generalizability of the results. The randomized controlled trial design, coupled with rigorous follow-up and blinded outcome adjudication, fortify the scientific robustness of the conclusions drawn.

In light of these findings, integrating TM into public health strategies aimed at reducing cardiovascular disease burden among high-risk populations emerges as a promising avenue. This holistic, stress-modulating approach could complement existing clinical interventions, empowering patients through self-care practices that are both scientifically validated and culturally adaptable.

Looking ahead, future research should explore the molecular underpinnings of meditation-induced cardiovascular protection, evaluate cost-effectiveness in broader populations, and assess implementation frameworks within various healthcare settings. Given the persistent inequities in cardiovascular mortality among Black Americans, innovative interventions such as TM-based programs hold transformative potential.

In summary, this landmark study furnishes compelling evidence that Transcendental Meditation, by mitigating stress and physiological dysregulation, can dramatically reduce the risk of severe cardiovascular complications in Black adults at high risk. TM’s incorporation into multimodal cardiac care paradigms could reshape prevention strategies and alleviate the burden of heart disease in disproportionately affected communities worldwide.

Subject of Research: People

Article Title: A randomized controlled trial of meditation and health education on carotid intima-media thickness and major adverse cardiovascular events in Black men and women.

News Publication Date: 18-Mar-2025

Web References:
https://doi.org/10.3389/fmed.2025.1513699

References:
Norris K, Salerno J, Bairey Merz CN, Kaushik V, Gelleta S, Castillo A, Nidich S, Gaylord-King C, Schneider RH (2025). A randomized controlled trial of meditation and health education on carotid intima-media thickness and major adverse cardiovascular events in Black men and women. Frontiers in Medicine. DOI: 10.3389/fmed.2025.1513699

Image Credits: Maharishi International University

Keywords: Transcendental Meditation, cardiovascular disease, Black Americans, major adverse cardiovascular events, randomized controlled trial, psychosocial stress, carotid intima-media thickness, atherosclerosis prevention, heart disease disparities, meditation, stress reduction, integrative medicine