Matters needing attention in winter morning exercise?

First, avoid fasting. In the morning, properly replenish water, increase circulating blood volume and reduce blood viscosity, but remember not to drink too much water at a time, and it is advisable to use 150-200ml to avoid increasing the burden on the heart and gastrointestinal tract. You can eat some food, such as bread, milk, eggs, fruits, etc., and do morning exercises outdoors after eating half full. Second, the time should not be too early. The temperature is low at night in winter, and harmful pollutants such as nitrogen oxides, hydrocarbons and lead in automobile exhaust are deposited on the ground. If people get up early to exercise, they will inhale a lot of smoke and toxic gases. In addition, trees need to metabolize, absorb oxygen and expel carbon dioxide, which leads to the increase of carbon dioxide content in the air. Long-term exercise in this environment may lead to fatigue, dizziness, pharyngitis and other diseases, which are harmful to the body. Therefore, winter morning is not the best time for exercise. After sunrise, the sun shines on the ground, which makes the atmosphere convection up and down, and the polluted air spreads to the high altitude. Green plants begin to photosynthesis, inhale carbon dioxide, and spit out oxygen. The air is fresh and healthy. Therefore, the best exercise time is after sunrise and before sunset. Third, it is not suitable for morning exercise in rainy and foggy weather. Fog is composed of countless tiny water droplets, which contain a lot of pollutants, pathogenic bacteria and other harmful substances. If you exercise in foggy days, the amount of breathing will increase, and more toxic substances will be inhaled, which will affect the supply of oxygen, thus causing chest tightness, dyspnea, palpitations and other symptoms, and even serious diseases such as rhinitis, pneumonia, tracheitis and conjunctivitis. Humidity is high in foggy days, which affects the distribution of sweat and is not good for your health. People with heart disease and cerebrovascular disease should not go out for morning exercise at this time. Fourth, the temperature is too low to do morning exercises. If the temperature in winter morning is too low, or the temperature drops suddenly, it is not suitable for morning exercise, especially for the elderly and infirm, who have poor body temperature regulation ability and are prone to catching a cold. The elderly should also pay attention to keeping out the cold. Five, the appropriate choice of venues. Exercise places should avoid roads, factories and other areas with serious air pollution. Sixth, exercise should be gradual. Do a good job in preparing for morning exercises, so that the functions in the body can be fully mobilized before putting into exercise, avoiding accidents and effectively preventing sports injuries. The amount of exercise should be appropriate according to your own situation. In addition, it is best for the elderly to take a walk together in the morning exercise and chat while exercising, which can not only enliven the atmosphere but also take care of each other. If there are special circumstances, they can get help in time.