Book excerpt: This comprehensive reference book for healthy living prescribes well-rounded diet, exercise, and natural therapies-- Covers herbs, minerals, and exercises that may prolong lifeMiracle supplements, nutritional therapies, and "fountain of youth" hormones are sweeping the nation. But there is no wonder drug to ensure long life. Instead, this guide offers sound advice on developing habits that promote health and longevity. The authors present detailed information on nutrition, exercise, and stress management, explaining why and how the human body reacts to these factors.