Meditation training appears to be a promising psychological approach to the control of hypertension. However, most studies to date have had serious deficiencies. This study attempted to correct many of these deficiencies. Forty-one unmedicated hypertensives referred by general practitioners were randomly allocated to three groups. The treatment group (SRELAX) underwent training procedures based on Transcendental Meditation; a placebo control group (NSRELAX) underwent identical training but without a mantra. Both procedures were compared with a no-treatment control group. The results showed modest reductions in blood pressure in both SRELAX and NSRELAX groups, compared with the no-treatment controls, with diastolic percentage reductions reaching significance (p<0.05). there="" was="" considerable="" subject="" variation="" in="" response,="" with="" overall="" a="" mean="" decline="" in="" diastolic="" blood="" pressure="" of="" 8–10%="" on="" 3-month="" follow-up.="" possible="" indicators="" to="" predict="" the="" response="" of="" subjects="" are="" considered="" and="" reasons="" for="" the="" similarity="" in="" the="" effectiveness="" of="" the="" srelax="" and="" nsrelax="" conditions="" are="">