Daily intake should be more foods rich in vitamin E, iron and protein, as well as some warm foods. Common warm foods are: cow, sheep, dog, chicken, garlic, pepper, ginger, onion, yam, longan and so on. In addition, when it is cold, you can drink a little wine properly, and the feeling of body warmth will be very direct and immediate. But don't drink too much. It should be noted that such people should avoid eating cold food, ice products or drinking cold drinks all year round.