What weather is suitable for running?

In fact, you can run in any weather, but the preparation is different from the amount of exercise. Running in cold weather: due to the stimulation of cold air, the hematopoietic function of the body changes and the resistance to diseases increases. Therefore, people who insist on running in cold weather rarely suffer from anemia, colds, bronchitis and pneumonia. Generally, the sunshine is weak in cold weather, so running outdoors can make up for the lack of sunshine. Sunlight can promote the absorption of calcium and phosphorus by human body and contribute to the growth and development of bones. Ultraviolet rays in sunlight can also kill germs on human body and clothes, and play a "disinfection role" on human body. The weather is cold, the temperature is low, the blood vessels on the body surface contract when it is cold, the blood flow is slow, the muscle viscosity increases, and the ligament elasticity and joint flexibility decrease. Make full preparations before running to prevent sports injuries. In addition, you should also keep your body, hands and ears warm when running in cold weather to prevent frostbite. Running on a hot day: the temperature is high on a hot day, and improper running is easy to get heatstroke. It is best to choose a cooler morning and evening for running in hot weather. Try to avoid direct sunlight when running during the day, and wear a straw hat to prevent sunburn. Running in windy days: Running in windy days will make you feel difficult to breathe. At this time, you should master the rhythm and depth of breathing, and don't inhale with your mouth open to prevent cold air from irritating your throat and trachea and causing cough. If the wind is too strong and dusty, you can exercise indoors instead. Running in foggy days: In suburbs and parks, the foggy air is as fresh as the fog-free air, but the air is humid and inhalation will not affect your health. You can run as usual in foggy days. Due to the poor visibility in foggy days, the running speed should be slower to prevent accidents such as falling. In places with air pollution, fog will prevent harmful waste gas from spreading into the air and make the air worse. In such a place, it is not suitable for running outdoors in foggy weather. Running in rainy days: If it doesn't rain much, you can put on a short raincoat and run on the asphalt road, but don't run too fast and be careful to slip. After running, dry the sweat and rain, and put on dry clothes as soon as possible. Running in snow: Wear a hat and gloves when running in snow, choose a flat road or run on the sports ground. When running, the steps should be small and the frequency should be fast, so as to prevent spraining the ankle in the uneven place. It's snowing, and the silver in the sun is dazzling. It is not advisable to run in the snow with strong sunshine, in case the light reflected by the snow hurts the eyes and causes snow blindness.