Health care is not a proper term for the elderly. Health care should start from "youth", such as washing feet every day, soaking Lycium barbarum in thermos, paying attention to diet and so on. In high school, I was particularly tired of studying every day. Sit in the classroom at 6: 30 in the morning, study by yourself at 10: 00 in the evening, and then go back to the dormitory. Like an arrow on the string, I feel that my body can't stand it every day, so I will play a pot of hot water every night and wash my feet with hot water, which can relieve fatigue in winter and summer. In order to make myself energetic in class, I will also soak in Lycium barbarum water to avoid getting angry. These are all good ways to keep fit.