There are many ways to prevent colds in winter, mainly to improve immunity, cold prevention methods are as follows: 1, improve the environment, although the winter is relatively cold, but also to do a good job of indoor ventilation, so that the air has a circulating state, breathing fresh air, you can avoid viruses, bacteria, secondary infections. 2, the appropriate exercise, exercise not only prevents the occurrence of obesity, but also to enhance the immune system, can greatly help in preventing colds. 3, have enough sleep, lack of sleep is also a cause of human immunity decline, but also sleep enough to maintain the human body. The most important thing is that it can enhance the immunity, the prevention of colds has a great help, after exercise, pay attention to drink warm water to replenish water. 3, have enough sleep, lack of sleep will also lead to a decline in the body’s immunity, on the contrary, enough sleep can be nourished to enhance immunity. 4, eat more fruits, vegetables, fruits are rich in vitamin C, and vitamin C is able to prevent common colds, of course, winter cold prevention people can be The vitamin C tablets can be taken appropriately.