Winter to do a good job of disease prevention should be mainly from the cold and warmth, physical exercise, regular physical examination, a reasonable diet of attention to these aspects. 1. Prevent cold and keep warm: the season is cold, first of all, to avoid the cold stimulation, especially when the cold wave came, the temperature dropped suddenly, pay attention to keep warm. 2. Physical exercise: you can take some fast walking, jogging, cycling and other forms of exercise. Appropriate exercise can help prevent cardiovascular and cerebrovascular diseases, but you should pay attention to keep warm and avoid getting cold when doing outdoor exercise. 3. Regular checkups: Go to the hospital for regular checkups for early detection and early diagnosis and treatment. If you feel unwell, you should consult a doctor immediately. 4. Reasonable diet: Maintain a balanced nutrition, eat more fresh vegetables and fruits, and preferably follow the principles of low-salt, low-sugar, low-oil and light diet. If there is physical discomfort or underlying disease patients are advised to go to the hospital to consult a detailed and specific prevention program.