People who are thin and in poor health should first consider whether there is a problem with diet or work and rest. If so, they must first adjust their eating habits and work and rest habits. Then, when you are just full, it is not suitable for exercise. You must wait until the food in your body is digested before exercising. And remember not to eat too much before exercise. In addition, you can eat a banana before exercise, which is the fruit recommended by the gym coach. In short, it is very beneficial. Do aerobic exercise for about five minutes first. Many thin people are not suitable for equipment training as soon as they enter the gym. They must move all the joints on their bodies. Therefore, before doing equipment training, you can choose to go to the treadmill for 5 minutes from slow to fast. A red rabbit treadmill like me is very suitable. This treadmill has excellent shock absorption and does not hurt your knees. If you feel that your body has not been completely released, you can do some leg press movements. Do equipment training step by step. You can have a rest after running, and then do equipment training. As for which body part to practice first, it depends on the physical quality of the individual and the actual situation of the gym. If you want to exercise your chest muscles, you can do some stretching exercises first. In order to open your chest muscles, you can do some training such as flat push and bench push, followed by dumbbells to exercise your arm strength. In short, we must train step by step, and don't adjust some heavy equipment at the beginning.