You should exercise regularly. Traditional Chinese medicine believes that the kidney is the root of the twelve meridians, and the congenital root lies in the kidney. It can be seen that the kidney is the "source of life". Eat more kidney-tonifying foods such as black sesame seeds, black rice, walnuts, leeks, shrimps and lamb kidneys. If you have the habit of masturbation, please quit it in time, pay attention to personal hygiene at ordinary times, develop good living habits, and don't wear tight underwear.