A rigorous meditation retreat lasting seven days has been shown to induce significant alterations in brain activity and blood composition that mirror effects commonly linked to psychedelic substances, as revealed by a recent study from the University of California San Diego. The research monitored 20 healthy individuals during a week that included 33 hours of meditation, 25 hours of self-healing lectures, and five hours dedicated to healing rituals. Utilizing brain imaging and blood analysis, the study assessed the outcomes. Participants exhibited engagement of pathways associated with neuroplasticity, immune response, metabolic processes, and the body’s innate pain management systems. When blood samples from participants post-retreat were introduced to cultured neurons, the cells exhibited longer projections and increased connectivity, indicating an improved potential for brain development. Individuals who experienced the most intense 'mystical' sensations during meditation displayed the most significant biological changes. Featured in Communications Biology, the results imply that profound altered states and wellness benefits could potentially be reached without the use of drugs, although researchers emphasize the necessity for more extensive studies to validate these findings.
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