For example, there is a fat man around me, so I knew at first sight that he must be lazy and doesn't like sports at ordinary times. Most of the time, he eats takeout, even if he works in the company, he never leaves his mouth. I don't usually watch him do a lot of exercise, but I don't know what he looks like when he gets home. But I think this person should be similar to that in the company, so I think this is a classic example. If a person is fat, it can show that this person is really lazy in his usual life.
In addition, if we walk into the street and see some women with very good figure, we will also know what this person's usual life is like. For example, if a woman wears hot pants and her hips look good, it means that this girl often pays great attention to her figure. This kind of peach buttocks is difficult to practice, so the probability of going to the gym is generally high and her diet is also very careful, so I think this is very easy.
So I think that if a person is slender, it means that he must have a good grasp of his figure at ordinary times, but if a person is bloated, it may mean that he will not control himself reasonably in his ordinary life, which will lead him to become so fat.