Today, I'm going to try alternate-day fasting, or alternate-day fasting, and the so-called 24-hour autophagy (Autophagy) I looked for two research papers, and the basic conclusion I can come to is 1. By 24 hours, the body has usually experienced glycogen depletion, a significant decrease in insulin levels, an increase in glucagon, and a process that begins to rely more on fat metabolism (ketosis), and can basically start deep autophagy 2. Inhibition of mTOR is one of the most important switches to trigger autophagy