Winter is a season suitable for tonic. You can eat some foods that tonify essence and blood every day, such as medlar, black rice, wax gourd, leek and yam. At the same time, it can cooperate with the exercise of strengthening waist and strengthening kidney. After all, does life lie in sports? Hehe, you should also control the sex. Winter is the season when the body hides and raises, and it is not suitable for frequent sexual intercourse.