A randomized controlled study recently published in the Hypertension issue of Ethnicity & Disease found the Transcendental Meditation (TM) technique helps prevent abnormal enlargement of the heart compared to health education (HE) controls. Also known as left ventricular hypertrophy (LVH), it can lead to chronic heart failure and death. It is twice as prevalent among African Americans. LVH and CVD death rates are double in African Americans compared to whites, possibly due to psychosocial stress.
Source: Transcendental Meditation prevents abnormal enlargement of the heart, reduces chronic heart failure