COVID-19 can't practice lying in the sun. According to Yingpian, the posture of "lying in the sun" is a kind of health-preserving action of traditional Chinese medicine: the body lies on its back, the feet are opposite, the legs are like rings, the palms are placed near the root of the thigh, and the palms are facing the abdomen. By stretching the lower limbs, we can stimulate and dredge the liver and kidney meridians, and play a role in tonifying kidney and benefiting qi and relieving muscle stiffness of lower limbs. It has the effect of invigorating qi and relieving kidney qi deficiency, female dysmenorrhea, muscle spasm, varicose veins and other people caused by long-term standing.