How your body's rhythm could help you lose weight, sleep better and live longer

A new book advocates a lifestyle change based around our circadian rhythms to improve our health, beginning with when to eat, when to sleep, and when to get some exercise, writes Karen Murray.

LOSE weight, become more energetic and sleep well every night. Bold promises outlined on the cover of The Circadian Code. Another fad diet where you eat nothing but tomatoes and broccoli and have to run 10 miles a day? No, not even close.