Fattening is a science. Not just eating and sleeping. Some people don't sleep long after eating, and don't exercise after overeating, which will reduce their physical fitness. Others say jogging. There is less fat in itself, and going to do aerobic exercise will only make fat burn faster. Including you like playing basketball, playing less. Do more anaerobic exercise. You said that your pocket is poor, and this "poverty" is not clear. I don't know how much you can spend a month. Let me tell you some precautions and exercise methods first. First of all, life should be regular, eat and sleep on time. Besides, abstinence. What we want to "ban" here is not only the physiological desires of men and women, but also the desires of eating snacks, playing too much (causing fatigue) and sleepiness. If you eat, you can eat something with crude fiber, high protein and fat. For example: meat. Eat both red and white meat. Don't listen to rumors that white meat is good. Eating red meat is unsanitary and unsafe (cattle, sheep and pork are red meat, and chickens, ducks and fish are white meat). There are also milk (milk is a good thing), eggs, potatoes, tomatoes and so on. Vegetables should also be eaten together, otherwise it is easy to get angry. The problem of "poverty" you mentioned earlier is coming. If you can afford 200 yuan, buy some canned protein powder. Go to the gym and sell some, not in the supermarket, which is usually for the elderly. Speaking of training, I said to do more anaerobic exercise. In the afternoon or evening, set aside an hour to customize a training plan. For example, practicing shoulders on Monday. Take a pair of dumbbells (I guess you don't have a barbell), stand with your feet shoulder-width apart, and hold a dumbbell palm in each hand and hang it in front of you (just like lifting a barbell). Then try to lift it, at least to your chest, with your elbows above your shoulders. When lifting, pay attention to other places to relax and shoulder muscles to contract. Each group probably does 15. If the back shoulders of the second and third groups are sore on the neck, that's right. Otherwise, it means that power is wrong. This practice will make the shoulders round and wide, and the whole person will look stronger. Then practice chest exercises and push-ups on Tuesday. Do it with your feet up if you can. Practice your arms on Wednesday, and your arms will get thicker. Take a dumbbell, try to keep your elbow still, and bend and stretch your forearm upward. I'm just making an analogy here. I'll arrange the specific time myself. If the shoulders become wider and the arms become thicker, the meat will naturally grow out and the weight will increase. But there is a problem involved here: you play basketball. You can't play basketball if you practice this in the afternoon. Playing basketball in the afternoon and practicing this at night will be too tiring. Excessive fatigue will only backfire. So if you really want to gain weight, you'd better play basketball first. The last lesson, practice, don't be too hasty, but step by step. Don't rush to practice hard. If you practice hard the day before, you can't practice for the next two or three days, or even pull a muscle, it's not worth the candle. You are fitness, not bodybuilding.