A friend of mine is a medical doctor and also a student of Parisha Taylor. He is very practiced in certain kinds of meditation. Aside from the psychological and spiritual benefits one obtains from the practice of meditation, as a doctor, he gave a friend who recently had bypass surgery, information on the benefits of meditation from a medical perspective. In his doctor-speak, he told this person that simple meditation techniques assist to stimulate the Relaxation Response, to increase coronary blood flow, induce production of potent vaso-dilators, to decrease blood pressure, to upregulate protective gene expression and decreasing cellular metabolism to form a crucial component of any self-healing programs following heart disease. Sounds good to me.