Exercise is the biggest key to lose weight, which requires comprehensive exercise: strength training and aerobic training need to be adhered to, and many people exercise to get a better body shape. When you exercise for a few years, you will find that the real purpose of exercise is to develop physical fitness, make your body healthier, have more and better energy to enjoy life, enjoy life and feel the beauty of the world, and body shape is only a by-product of fitness. Once you start fitness, you must stick to it.