First: it may be because of improper diet after fitness. Because most of the energy in our body will be consumed in the process of fitness, some important trace elements in our body will be emitted in the form of sweat. At this time, we will feel hollowed out, exhausted, thirsty and hungry. Our body's instinctive reaction will urge us to "eat, drink and be merry" to replenish energy. At this time, some people began to eat big fish and meat, no matter whether the energy contained in these things is high or not. At this time, your purpose of fitness will be in vain, because these things contain much more calories than you consume this time.

Second: the way of fitness is wrong, and there is no targeted exercise. For example, the purpose of your fitness is to practice a vest line and shrink your waist, so you should practice your waist specially, not running and so on. You can choose to practice yoga, which has various movements, and choose the one that suits you to practice the flexibility and toughness of your waist.

Third: there is no daily exercise, just "fishing for two days a day and drying the net". Some girls can't persist after only two or three days of exercise, and then have a long rest in the middle, so the possibility of having a waistline is very small.

Fourth: "Shut your mouth and spread your legs" in life. Girls love to eat all kinds of puffed food, such as chocolate, cake and cream. They stay at home and watch TV on weekends, and then start eating and drinking puffed food, which is very easy to make us fat.

Therefore, in order to develop the vest line in fitness, we should not only pay attention to the exercise method, but also control our mouth, and have the endurance to persist, so as to "control our mouth and open our legs".