Fasting Facts

In 1965, a 27-year-old Scotsman named Angus Barbieri walked into a hospital and told doctors he wanted to stop eating until he reached a healthy weight. He didn't eat for 382 days, living entirely off his body fat. He went from 456 pounds to 180 with no adverse effects — and kept the weight off for the rest of his life.

Fasting for 12-16 hours before you want to wake up can help reset your sleep schedule. Your body has a secondary 'food clock' that, when activated by hunger and then eating, can override your regular circadian rhythm—a survival mechanism that helped our ancestors adjust to food availability.