The authoritative text for every researched or medical practitioner dealing with aging and the critical diseases of our time and a fascinating and important study for the health-conscious consumer. Rozencwaig, respectfully known as THE MEKATONIN DOCTOR, and Walji, a renowned author and health consultant, here summarize the most up-to-date research on melatonin's use for; anti-aging; heart disease; cancer treatment (since melatonin is the ultimate antioxidant); Alzheimer's disease; sleep improvement, PMS, seasonal affective disorders, diabetes, autism, and other uses.