I think people who exercise are generally in good health. People who exercise regularly catch a cold, so I think people who exercise can recognize it at a glance after it rains. If some people catch a cold, their health is very poor. They don't exercise often, but people who exercise have very good physical resistance and some immunity, so I think people who exercise will keep their bodies very well. They also have a lot of abdominal muscles and great strength, so I think people who exercise generally have these characteristics, while people who don't exercise don't have these characteristics, so I think it can be seen at a glance.