The relationship between light, sleep, and human health is revealed in this groundbreaking study, which explores the links between infertility, weight-gain, sex drive problems, depression, and other health ailments with a lack of sleep. Reprint.
Author claims to solve the mystery of all disease by suggesting to switch off the lights early and go to bed. their observation that staying up late night disturbs the natural hormone distribution.. besides that they recommed low-carb diet and weight lifting exercise.