Second, try to choose an outdoor place with sufficient oxygen for exercise. It is cold in winter, and many people like to go to gymnasiums, swimming pools and other indoor places to exercise. Dr. Xu Xiuzhen said that the air quality is very poor in winter, and it is even worse in places where there are many people indoors. If it's not a professional training, it's best to choose the right time to exercise in a place with plenty of oxygen and fresh air outside.
Third, develop regular work and rest habits. In winter, many people are used to sleeping late in the morning and staying up late when they are in good spirits at night. Because of irregularity and lack of exercise, the body's resistance drops, and it is not only unconscious at work, but also prone to illness. In this regard, Dr. Xu Xiuzhen said, we must form regular work and rest habits and exercise regularly, which can not only ensure energy, but also enhance resistance.