In fact, this idea is wrong, but there is no such thing. There are many thin people and many obese people in this world. The two kinds of people who go to exercise and run have the same purpose, that is, to exercise. The body is the capital of the revolution, but there is an obese person. Thin people will not get thinner and thinner when running, but will only make their bodies stronger and stronger, and they are all bones, and then the skin outside will become stiff.
This effect is that the body has been successfully exercised and the strength and physical strength of the legs have been improved. If thin people run thinner and thinner, then thin people all over the world look like firewood, as if the wind blows and falls down, and they feel that they can't stand. Then running is restricted to the crowd and only used by obese people.
The way for thin people to be thinner is not running. The weight of the human body seems to have reached a peak and cannot be changed. Want to break through this, not by exercise, but by dieting. If you eat little for a month, you will get thinner and thinner, but your health will get worse and worse.
So don't doubt that thin people will get thinner and thinner when running. It may be that the muscles of the body are strong, others look different from before, and they feel that they have changed their faces and become less fragile. One of the benefits of running is that it can improve lung capacity and make your body better and better.