Whether an exercise can reduce fat mainly depends on how long it lasts. Climbing stairs is mainly to exercise heart and lung function, and sticking to 15 minutes should also have the effect of losing weight. Compared with sprinting, jogging for a certain period of time can achieve the effect of reducing fat, such as 40 minutes. Of course, it's no use doing it for a day or two. It is important to exercise to lose weight, but you should also control your diet and don't eat snacks indiscriminately.