Reasonable exercise, nutrition, and stress management advice--absolutely undistinguished except by its source. Certainly the YMCA has long brought sound new health programs to numbers of people--exercises for bad backs, for pregnant women, for cardiovascular patients--and the advice here is characteristically cautious and thorough. Fitness comes first: preconditioning, a calisthenics program; warm-up and cool-down exercises; regimens for increasing flexibility, strength, and endurance; a cardiovascular program; and some special advice for special circumstances (lower back problems, for one). Next is nutrition: basic guidance on the food groups; what to do about fiber, sugar, salt; how to construct a healthy diet. Finally, there's a look at mental health: stress management techniques, plus communication skills and tips to enhance interpersonal relationships. Sound and staid.