When Dr. Herbert Benson introduced this simple， effective， mind/body approach to relieving stress twenty-five years ag， his book became an instant national bestseller. Since that time， millions of people have learned the secret--without high-priced lectures or prescription medicines. The Relaxation Response has become the classic reference recommended by most health care professionals and authorities to treat the harmful effects of stress.Discovered by Dr. Benson and his colleagues in the laboratories of Harvard Medical School and its teaching hospitals， this revitalizing， therapeutic approach is now routinely recommended to treat patients suffering from heart conditions， high blood pressure， chronic pain， insomnia， and many other physical ailments. It requires only minutes to learn， and just ten to twenty minutes of practice twice a day.