1. Don't do morning exercises on an empty stomach or full stomach. You can eat something, have a rest after half full, and then do morning exercises outdoors.
Some people get up at three or four in the morning to exercise, and then continue to sleep, which is not only easy to inhale dirty air, but also makes the biological clock disorder, leading to fatigue and premature aging. It's best to wait until the sun comes out before starting morning exercise, because the air pollution on the ground is the heaviest before sunrise, and there is less oxygen at this time. After sunrise, the green plants start photosynthesis, inhaling carbon dioxide, spitting out oxygen, and the air is fresh.
3。 The temperature is too low to do morning exercises. In autumn and winter, if the temperature 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 catch a cold and get sick.
4. Not suitable for morning exercise in rainy and foggy weather. The current "fog" is different from the previous "water mist". Because of the serious pollution, it is mostly "pollution fog". Tiny droplets contain a lot of pollutants and pathogenic bacteria. When the amount of breathing increases in the morning exercise, more pollutants will be inhaled, which will cause dyspnea, chest tightness, palpitations and so on in severe cases.