2. When you do aerobic exercise, your body consumes glycogen first, and then you start to decompose fat after glycogen consumption. The amount of glycogen stored varies from person to person. Usually the average level is 40 minutes to 1 hour of aerobic exercise, so it can only be said that it takes at least 30 minutes to start burning fat after 30 minutes.

3. Losing weight and reducing fat are two concepts. Even if you lose fat, your body really gets better by improving the quality of your muscles, but your weight has not changed, and it may be heavier, because muscles with the same weight are much smaller than fat. So weight is not the best measure of weight loss effect.

Drinking a cup of black coffee half an hour before exercise helps the body burn fat ahead of time.