If you have always been the kind of person who has never been fat, the boss has always been thin, and no matter how much you eat, I suggest you go to the hospital for a check-up and drink some Chinese medicine to recuperate. Secondly, I suggest you eat more and less. Under normal circumstances, being so thin is probably due to poor absorption by the digestive system, so I suggest you eat more meals to make your stomach absorb better, and supplement some snacks or a high-fat food after meals. You can also eat some protein powder to increase your muscles.
As for fitness, after you have a certain figure, you should start with physical fitness. You can choose aerobic exercise, or treadmill, spinning bike, etc. You can try anything you like. I think you want to rape the leg muscles of your lower body. Spinning is the first choice. If you want to practice the core strength of your whole body, you should choose aerobics. If you want to practice more comprehensively, you choose to run. Then you can choose dumbbells and other equipment to practice upper body muscles after you have a certain amount of meat.
Not only in the gym, but also at home to practice some push-ups, sit-ups and other core strength exercises about the abdomen and waist. Hang in there, no matter how thin you are, you can build a good figure. ?