Harm of tight binding:

Athletes can only tighten their waist when doing strenuous exercise. After the exercise, they must loosen their belts in time to relax their muscles and smooth their blood vessels. If the belt is tied too tightly, it will hinder the normal extension and contraction of muscles, or cause poor breathing, so that you can't breathe during exercise, and sometimes the belt will break, which is not only bad for your health, but also affects your sports performance.

Fasten your seat belt correctly: don't loosen it too tightly. Comfort is the most important thing, otherwise it will affect your health and sports performance.