I tried fitness books and keep, but my constitution was poor and I was seriously sub-healthy. Therefore, from the beginning of muscle gain, gradually develop fitness habits and get an introduction to brain health. Keep is too fancy. If you follow it every day, you will lack the ability to think and study, which is very important for fitness. I have used the fitness book for two months and practice it every Friday. According to their actual situation, constantly modify the training content, learn muscle knowledge and learn diet. Now I have some accumulation in fitness and diet. The key is to form the habit of ironing and eating reasonably every day.