That is, a man who works out is not suitable for his age, and he is called young. Fitness can make people younger and grow in reverse. Because of the relationship between exercise and growth hormone, growth hormone is protein secreted by adenohypophysis cells, and it is a peptide hormone. Has anti-aging and growth promoting effects. Anaerobic exercise and exercise under anoxic condition can stimulate the secretion of growth hormone. Some data even say that after some exercise 10 minutes, the growth hormone concentration can be increased 100 times. So it can resist aging and reverse growth.