ACTH and beta-endorphin in transcendental meditation

Author(s): Infante, J. R., Peran, F. , Martinez, M. , Roldan, A. , Poyatos, R. , Ruiz, C. , Samaniego, F. , Garrido, F.

Journal/Book: Physiology and Behavior. 1998; 64(3): 311-315.

Abstract: We have evaluated the effect of Transcendental Meditation (TM) on the hypothalamo-hypophyseal-adrenal axis diurnal rhythms through the determination of hormone levels. Blood samples were taken at 0900 hours, and at 2000 hours. These samples were taken from 18 healthy volunteers who regularly practice TM and from nine healthy non-meditators. Cortisol, beta- endorphin, and adrenocorticotropic hormone (ACTH) were measured at both hours. TM practitioners showed effect on the neuroendocrine axis. Because cortisol levels had a normal pattern in the TM group, these results may be due to a change in feedback sensitivity caused by this mental technique.

Keyword(s): cam. medit. cr

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