You must have just taken part in sports. No matter whether you are fat or thin, your weight tends to increase after you start exercising. This is because after exercise, your absorption is enhanced, your muscles are increased, and your muscles are heavier than fat, but your fat has not been consumed. At the same time, you need more food after exercise and sleep better. Several factors lead to the weight gain after exercise. If you persist in exercise, the growth rate of muscles will obviously slow down after they grow from a low level to a certain limit. At this time, exercise began to consume fat, and the real weight loss began at this time. So, don't lose heart, persistence will have results.