The purpose of running is to exercise, which is suitable for any crowd. But generally speaking, thin people have less fat, so running is not to lose weight, but mainly to exercise heart and lung function and enhance physical fitness.

If you want to be stronger, you can't take running as the main exercise method. Aerobic exercise can effectively consume body fat, but running for a long time will also consume muscles together.

I hope I can help you, thank you for your adoption!