This study in collaboration with the American National Institute of Health followed mortality patterns over a period of 19 years after adults with high blood pressure were taught the Transcendental Meditation technique, or participated in controlled interventions. The results showed a 23% decrease in mortality rates by all causes, and a 30% decrease in mortality rates for heart diseases in the TM group, as compared to the control group.Ref.American Journal of Cardiology 95: 1060–1064, 2005