A premature, often impractical and ill-advised attempt to construct a program of diet, exercise, and medication to prolong life. Kent has been over this ground in the past via reports on research findings (The Life Extension Revolution, 1980); here, he updates his material and tries to generalize research results into a plan for personal action. Much action involves nutrition: Kent discusses the optimum diet (no surprise) and the importance of weight control; additional suggestions for nutritional supplements, often poorly-based, are scattered through the rest of the text. (""By taking 150 to 250 mg. of niacin before sex, you can increase the likelihood of reaching orgasm and prolong the length and pleasure of your response."") There is a lot of new material, but little guidance in judging its worth; many suggested therapies (for physical and mental health) are unobtainable by the public, or not available in this country--and, in both cases, not necessarily harmless. Kent's advice: ""In deciding which therapies are best for your life-extension program, you will have to experiment with them yourself."" For a more balanced view, and an expert's help with a personal program, see instead Sheldon Hendler's standout Mega Health (1984, p. 1135).