What the world’s healthiest people have in common
14 of 18
They go to bed by 10pm
“Sleep is the forgotten aspect of fitness, weight loss, and health, but without getting those eight hours we are overexposing our body to the ‘stress hormone’ cortisol which stimulates cravings and appetites for junk food, breaks down muscle tissue, and stimulates belly fat storage,” says Dr Shawn Talbott, nutritional biochemist and author of The Vigor Diet, The New Science of Feeling Your Best. But when you sleep may be just as important as how much. Every hour of slumber you get before midnight is worth two hours of sleep afterwards, he says.