Meditation changes brain structure and reduces stress hormone levels.
the verdict
CONTESTED
contested - evenly split
refutedsupported
the weight of evidence
8 sources for · 1 against
While several studies report that meditation alters brain structure and reduces stress, other randomized controlled trials question the robustness of these structural changes and note methodological limitations.
Knowing target regions undergoing strfuncti changes caused by behavioural interventions is paramount in evaluating the effectiveness of such practices. Here, using a systematic review approach, we identified 25 peer-reviewed magnetic resonance imaging (MRI) studies demonstrating grey matter changes related to mindfulness meditation. An activation likelihood estimation (ALE) analysis (n = 16) revealed the right anterior ventral insula as the only significant region with consistent effect across studies, whilst an additional functional connectivity analysis indicates that both left and right insulae, and the anterior cingulate gyrus with adjacent paracingulate gyri should also be considered in future studies. Statistical meta-analyses suggest medium to strong effect sizes from Cohen's d ~ 0.8 in the right insula to ~ 1 using maxima across the whole brain. The systematic review revealed design issues with selection, information, attrition and confirmation biases, in addition to weak statistical power. In conclusion, our analyses show that mindfulness meditation practice does induce grey matter changes but also that improvements in methodology are needed to establish mindfulness as a therapeutic intervention.
Studies purporting to show changes in brain structure following the popular, 8-week mindfulness-based stress reduction (MBSR) course are widely referenced despite major methodological limitations. Here, we present findings from a large, combined dataset of two, three-arm randomized controlled trials with active and waitlist (WL) control groups. Meditation-naïve participants ( n = 218) completed structural magnetic resonance imaging scans during two visits: baseline and postintervention period. After baseline, participants were randomly assigned to WL ( n = 70), an 8-week MBSR program ( n = 75)
Background and Objectives: Meditation and mindfulness, rooted in ancient traditions, enhance mental well-being by cultivating awareness and emotional control. It has been shown to induce neuroplasticity, increase cortical thickness, reduce amygdala reactivity, and improve brain connectivity and neurotransmitter levels, leading to improved emotional regulation, cognitive function, and stress resilience. This systematic review will synthesize research on neurobiological changes associated with mindfulness and meditation practices. Materials and Methods: Studies were identified from an online search of PubMed, Web of Science, Cochrane Library, and Embase databases without any search time range. This review has been registered on Open OSF (n) GV2JY. Results: Mindfulness-Based Stress Reduction (MBSR) enhances brain regions related to emotional processing and sensory perception, improves psychological outcomes like anxiety and depression, and exhibits unique mechanisms of pain reduction compared to placebo. Conclusions: This review highlights that mindfulness, particularly through MBSR, improves emotional regulation and brain structure, reduces anxiety, and enhances stress resilience. Future research should focus on diverse populations and naturalistic settings to better understand and optimize these benefits.
Yoga is a mind-body practice that originated in India thousands of years ago, and which has extended throughout the world in recent years. As it becomes more popular, more studies are being conducted regarding its health benefits in multiple areas, including the human brain, where results have shown that it can reduce stress, modulate neurotransmitters, increase cerebral blood flow, and affect brain structure and function. This review aims to provide a synthesis of the current knowledge on the impact of yoga on human brain structure and function, through the selection and analysis of 23 international peer-reviewed neuroimaging studies with healthy participants. These studies were selected from 216 results on Web of Science, PubMed and PsycInfo after applying the inclusion and exclusion criteria. The final set of studies employed both neuroimaging and neurophysiological techniques, including MRI, fMRI, and EEG. The results show that yoga may exert multiple effects on the brain. However, the heterogeneity of results may be explained by differences in sample characteristics, study designs, and the lack of a consistent definition of yoga and its distinction from meditation. Finally, the limitations of the present review are discussed, along with recommendations for future research aimed at better understanding the neuropsychological health benefits of yoga.
Knowing target regions undergoing strfuncti changes caused by behavioural interventions is paramount in evaluating the effectiveness of such practices. Here, using a systematic review approach, we identified 25 peer-reviewed magnetic resonance imaging (MRI) studies demonstrating grey matter changes related to mindfulness meditation. An activation likelihood estimation (ALE) analysis (n = 16) revealed the right anterior ventral insula as the only significant region with consistent effect across studies, whilst an additional functional connectivity analysis indicates that both left and right ins
Mindfulness meditation has become a promising intervention for promoting health and well-being. Neuroimaging studies have shown its beneficial effects on brain functional activity, connectivity, and structures following months to years of practice. A series of randomized controlled trials indicated that one form of mindfulness meditation, the integrative body-mind training (IBMT) induces brain functional and structural changes in brain regions related to self-control networks such as the anterior cingulate cortex (ACC) after 2–10 h of practice. However, whether IBMT could change brain metaboli
The emotion regulation mechanism of mindfulness plays an important role in the stress reduction effect. Many researchers in the fields of cognitive psychology and cognitive neuroscience have attempted to elucidate this mechanism by documenting the cognitive processes that occur and the neural activities that characterize each process. However, previous findings have not revealed the mechanism of information propagation in the brain that achieves emotion regulation during mindfulness. In this study, we constructed a functional brain model based on its anatomical network structure and a computat
The authors evaluated an 8-week, 2-hr per week training for physicians, nurses, chaplains, and other health professionals using nonsectarian, spiritually based self-management tools based on passage meditation (E. Easwaran, 1978/1991). Participants were randomized to intervention (n = 27) or waiting list (n = 31). Pretest, posttest, and 8-and 19-week follow-up data were gathered on 8 measures, including perceived stress, burnout, mental health, and psychological well-being. Aggregated across examinations, beneficial treatment effects were observed on stress (p = 0.0013) and mental health (p =
The purpose of this protocol is to (1) Determine whether a one-on-one mindfulness meditation intervention or audio training improves performance on an adaptive communication system that utilizes brain-computer interface (BCI); and (2) Determine whether the intervention reduces stress in subjects with severe speech and physical impairments (SSPI). Hypothesis: The group of subjects randomized to the mindfulness meditation training will improve BCI performance and stress levels more than the audio control group.
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