'Thirty-eight individuals participating in a 3-month yoga and meditation retreat were assessed before and after the intervention for psychometric measures, brain derived neurotrophic factor (BDNF), circadian salivary cortisol levels, and pro- and anti-inflammatory cytokines. Participation in the retreat was found to be associated with decreases in self-reported anxiety and depression as well as increases in mindfulness. Increases in the plasma levels of BDNF and increases in the magnitude of the cortisol awakening response (CAR) were also observed.' (1)
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(1) Cahn, B.R., Goodman, M.S., Peterson, C.T., Maturi, R., Mills, P.J. Yoga, meditation and mind-body health: Increased BDNF, cortisol awakening response, and altered inflammatory marker expression after a 3-month yoga and meditation retreat (2017) Frontiers in Human Neuroscience, 11, art. no. 315