How does physical exercise promote health?

1, in physical exercise, you can hone your will. Proper physical exercise can promote your muscle growth, enhance your immunity and increase your invasion of some viruses;

2, improve metabolism, enhance heart and lung function, enhance muscle toughness, improve nutrient transport capacity in blood, consume fat, and enhance the functions of organs such as heart and lung;

3, but remember, don't do extreme sports, because people's bodies have limits, and too strong physical exercise sometimes hurts themselves, so it must be moderate. As the saying goes, everything is right.