Being thin can also be used for fitness and running. It can improve endurance, vital capacity and accelerate metabolism. Keeping a healthy and slim figure is also a good living condition. If you don't want to be too thin, combined with some basic anaerobic exercises, common low-threshold ones: push-ups, sit-ups, lunges, abdominal wheels, pull-ups, squats, and various bending movements can all play a good role in fitness.

If you just want to lose weight, you must lose weight through aerobic running, which is necessary.

So running can be universal, depending on how you use it and how you play its role.