In 20 12, Dr. michael mosley began to fast because of a weight loss study. He visited cutting-edge scientists, plunged into the ancient religion of fasting, and boldly experimented by himself, combining the fasting experience that has been maintained for thousands of years with contemporary science, and invented a brand-new weight-loss method for modern people: light fasting. Fasting is just a return to the most natural eating state: eating normally five days a week and only slightly controlling it for two days. Fasting not only changed eating habits, but also transformed the mind, and finally surpassed weight loss and became a healthy lifestyle.