Studies have shown that people will gradually burn fat after 10 minutes of exercise, which is actually incomplete, because the time of burning fat is different according to the intensity of exercise. If aerobic exercise is running, it takes about 15~25 minutes to start burning fat.

If anaerobic exercise exercises the muscles of the body, the time of burning fat may be greatly shortened because of its high intensity, but as we all know, anaerobic exercise is calculated by quantity. For example, if you do squat sit-ups, you count by the number of times, not by the time, or you can't say that I did sit-ups for half an hour, which is unmeasurable, but how many times you did it is measurable, so the time to burn body fat is measurable.

Our bodies have an order of consuming energy. The earliest time should be glycogen, which is stored in our body. This is the daily energy of physical activity. Glycogen does not need much oxygen when burning, and the burning speed can meet the needs of our daily activities. When you walk and think normally, you consume glycogen, and then your body will convert some of it to meet the needs of our daily activities. But when you run fast, or sit in anaerobic exercise, glycogen has been digested, and your body doesn't move so fast. At this time, you will consume fat, but when you burn fat, you need more oxygen and will produce lactic acid, so you will feel very tired and need to take a deep breath.

It is precisely because of this consumption order that the human body cannot directly consume the existence of fat. It is to store energy and protect internal organs. There is no problem in the normal category. Generally speaking, it is no problem for men and women to be less than 35%. The ideal figure should be kept at 20%~30%, so that the body can look a little muscular and thin. When it exceeds 40%, it should be awake and needed.