How to prevent colds in winter

1. Keep your nose warm. An important reason why cold weather is easy to catch a cold is that the nose does not keep warm well. The temperature of the nose is usually low, which is easy to reduce the resistance to infection. If the weather is too cold, put on a mask or scarf in advance to help keep your nose warm.

2. Shake hands as little as possible. Handshaking will increase the body surface area and time of contact between the two sides, and increase the risk of infection by 10 ~ 20 times.

3. Wash clothes with hot water. If someone at home has a cold, you might as well wash clothes and sheets with hot water, which will help kill germs.

4. Eat less sugar. Eating more sugar is easy to increase weight and risk of cardiovascular disease. Moreover, it was found that when volunteers ingested100g of sugar, phagocytes in the immune system would reduce their phagocytosis of bacteria within 5 hours. Therefore, reduce sugar intake and give the immune system a chance to "fight"!

5, ensure 8 hours of sleep. If you sleep less than 7 hours a day, the chance of catching a cold will increase by 3 times. Studies have found that sleep disorders or lack of sleep will affect the activities of the immune system.

6. Keep your distance from people with colds. Studies have found that if you sit within two seats of a cold patient, the possibility of being infected will increase dramatically. When you see someone sneezing with a runny nose, you should change your seat or open the window as soon as possible.

7. Wash your hands frequently. If the hands are dirty, the sterilization effect cannot be achieved simply by using hand disinfectant. Always wash your hands with soap when you come home from outside.

8. Wash your nose with salt water. Salt can help prevent colds and prevent bacteria from staying in the nasal cavity.

9. Exercise properly. Moderate and appropriate exercise can enhance immunity, but don't exercise too hard.

10, vitamin d supplement. If vitamin D is lacking, the chance of catching a cold will increase 1/3, so vitamin D can be supplemented appropriately.