What is the principle of exercise to lose weight?

　　The energy required for muscle movement comes from two parts: sugar and fat in the body

　　Sugar in the body:

　　When people perform intense exercise for a short period of time, a large amount of sugar in the body is broken down to produce energy for use by the muscles.

　　Body fat:

　　When people exercise for a long time, the calories provided by sugar in the body are far from meeting the needs, so the fat in the body undergoes oxidation and decomposition to produce heat energy for the body to use.

　　This means that exercise to lose weight requires continuous exercise for more than 30 minutes each time.

　　Short-term exercise will also make the muscles of the human body thicker.