How do foreigners conduct sports education for children?

Comparison of fat and muscle of the same weight. The volume difference is more than 5 times. So, basically, if you exercise according to the method I mentioned, the general weight change should be first down and then up (of course, except for the big fat people, I am talking about the majority of students in the slightly fat world), but your appearance and temperament should look completely different. In 3 months, you should be able to achieve or approach the following effect.