1. Wash your face with cold water and soak your feet with warm water. Washing your face with cold water in the morning can not only improve the blood circulation of your face, but also strengthen the elasticity of your skin and prevent wrinkles. Others can also strengthen the ability to resist the cold, reduce the chance of getting rhinitis and colds, and relieve the nervous headache caused by neurasthenia, but the water temperature should not be too low, just control it at 10℃. Soaking feet with warm water one hour before going to bed can not only relieve fatigue, but also promote bedtime. There are many acupoints on the soles of feet. Soaking feet with warm water can relax tendons and activate collaterals, accelerate blood circulation of feet, and help treat chilblain and varicose veins. 2, fair tonic according to their own materials to choose tonic food, cold physique can eat beef, mutton, ginger and onions properly. Warm physique can choose lily duck, tuanyu radish and Chinese cabbage. As a person with normal constitution, you can choose high-quality protein food such as fish, beans and lean meat, which can not only increase nutrition, but also enhance the ability to resist cold. Others drink warm porridge in winter, such as oatmeal porridge, radish porridge, walnut porridge and jujube porridge, which have the functions of nourishing the heart, removing coke, promoting digestion and resolving phlegm, benefiting qi and nourishing yin. 3, massage the abdomen, put your hands together on the navel to keep the goal of clockwise and counterclockwise natural breathing, massage for 30 laps each time, which can promote local blood circulation and metabolism, help to treat obesity, hypertension, hyperlipidemia and arteriosclerosis, and promote food digestion. 4. Push the chest, press the left hand above the left breast, gently push the finger obliquely down to the right lower abdomen, rub it back and forth for 50 times, then change the right hand and rub it with the same method. Finally, slapping the palm of your hand on your chest and back 100 times each time has the functions of expanding your chest, regulating qi, improving heart and lung function and prolonging life. 5, do a good job of keeping warm When the head is vulnerable to cold stimulation, blood vessels are shortened, and the muscles of the head are important, it is easy to cause colds and headaches. When other backs are stimulated by severe cold, they will enter the internal organs through the acupoints on the back, which will not only cause backache, but also endanger the key parts and muscles of the upper and lower limbs. When the feet are cold, the capillaries in the mucous membrane of the upper respiratory tract will be shortened, which will slow down the swinging speed of the hair, lead to decreased resistance and easily induce a cold. So keep your head, back and feet warm.