Almost everyone has had their blood pressure measured with a standard mercury sphygmomanometer by their doctor.
Mediatators have a mean systolic blood pressure 13.7 less than non-meditators.
Here is the research:
Cort, D.A. "A Comparison of Compliance to Group Meditation, Individual Meditation and Didactic Group Training in a Program to Help Lower Blood Pressure in Black Adults." Dissertation Abstracts International 50, no. 6-B (1989): 2617.
Delmonte, M.M. "Physiological Responses during Meditation and Rest." Biofeedback and Self-Regulation 9, no. 2 (1984f): 181-200.
Wallace, R.K., J. Silver, P.J. Mills, et al. "Systolic Blood Pressure and Long-term Practice of the Transcendental Meditation and TM-Sidhi Program: Effects of TM on Systolic Blood Pressure." Psychosomatic Medicine 45, no. 1 (1983b): 41-46.
Bagga, O.P., and A. Gandhi. "A Comparative Study of the Effect of Transcendental Meditation and Shavasana Practice on the Cardiovascular System." Indian Heart Journal 35, no. 1 (1983): 39-45.
Hafner, R.J. "Psychological Treatment of Essential Hypertension: A Controlled Comparison of Meditation and Meditation plus Biofeedback." Biofeedback and Self-Regulation 7, no. 3 (1982): 305-316.
Seer, P., and J.M. Raeburn. "Meditation Training and Essential Hypertension: A Methodological Study." Journal of Behavioral Medicine 3, no. 1 (1980): 59-70.
Pollack, A.A., M.A. Weber, D.B. Case, et al. [2190] "Limitations of Transcendental Meditation in the Treatment of Essential Hypertension." Lancet 1, no. 8002 (1977): 71-73.
Blackwell, B., S. Bloomfield, P. Gartside, et al. [1174] "Transcendental Meditation in Hypertension: Individual Response Patterns." Lancet 1, no. 7953 (1976): 223-226.
Stone, R., and J. DeLeo. [2420] "Psychotherapeutic Control of Hypertension." New England Journal of Medicine 2 (1976): 80-84.
Juhl, Al, and S. Strandgaard. [1760] "Treatment of Hypertension with Relaxation and Biofeedback." Scandinavian Journal of Clinical and Laboratory Investigation 45, no. 176 (1985): 70-80.
