Sleep

Research of almost 70,000 women over 16 years has shown that having ample amounts of sleep is a key to avoiding weight gain.They found women who slept five or fewer hours a night were a third more likely to put on at least 33lbs (15kg) than sound sleepers during that time. (BBC)

What has sleeping got to do with diet and fitness? Quite a lot really.

I had a friend who, for years, felt that strength training was a waste of time. Then one day he began a regular program with a personal trainer. His comments after a few weeks of working out were very positive. He said he had never slept so well in many years.