YOUR BODY DOESN"T LIE! YOU CAN ASK IT WHAT"S BEST FOR YOUR HEALTH. A simple muscle test can tell you what stimuli can strengthen or weaken you--how your body responds to stress, posture, specific foods, emotions, and your entire social and physical environments. Based on the role of the thymus gland in regulating body energy, this laboratory-tested method can guide you into a more vital, healthier way of life. Begin benefiting now from Dr. John Diamond"s unique, personal synthesis of developments in psychiatry, preventive medicine, kinesiology, nutrition, and music therapy.