Drink plenty of water; Exercise more; Run to the playground when you have something to do, and don't sit on a stool all day to study; Take a walk after meals to help digestion; Have a happy outlook. Don't stay up late, because the semester is coming to an end. The biology teacher said, "Every night from 10:00 to 2: 00 in the morning, protein's secretion is the most vigorous, and entering a deep sleep state during this time will help to increase." You don't look fat when you grow taller.