At the age of 20, keep healthy and exercise. Ten years later, you will find that you must have benefited a lot.

My neighbor, 20 years old, others stay up all day playing games, eating, drinking and being bedridden. As for him, he started to exercise at the age of 20 and went to the gym every day. Now he is 35 years old and looks like a handsome boy in his twenties.

And those who don't care about health, just 30 years old, bald and greasy like a bad old man.