From his own account, stress and mercury poisoning transformed Lenox, Mass., physician Hyman (UltraMetabolism
) from a physical and mental titan to a depressed, anxious chronic fatigue sufferer. His journey to health included visits to a TCM practitioner and a Hawaiian naturopath. Here he cites the main culprits of his and other serious, now epidemic, conditions (mood disorders, Alzheimer's disease, ADHD, autism, etc.): 21st-century lifestyles, dangerous environmental toxins and genetic liabilities. Hyman contends that psychiatrists and neurologists prescribe cognitive therapy and medication, but do not address the physical damage causing brain dysfunction. His program to balance seven key body systems consists of a gluten- and dairy-free diet; 30 minutes of daily walking and morning and evening self-care rituals. Quizzes help readers determine their weaknesses and whether to follow the basic plan, optimize it or seek medical intervention. Hyman thoroughly explains each body system; the impact of poor diet, stress and environment; the best foods and supplements; and ways to detoxify and activate the body's own healing mechanisms. An online companion guide offers additional advice (for example, a more vigorous physical training regime, brain exercises and ways to ease detoxification side effects and constipation), as well as allergy-free recipes. (Jan.)