大多数爱锻炼的人都有晨练的习惯,但是清晨并不是适宜的锻炼时间。首先来看看外界因素:一是植物在夜间也吸氧,呼出二氧化碳,因此,树木多的地方,早晨集聚的二氧化碳较多。二是夜间逆温层出现较多,致使清晨空气不佳。在夜间,风 Most people who love to exercise have the habit of morning exercise, but the early morning is not suitable exercise time. First, let’s look at the external factors: First, plants also take in oxygen at night and exhale carbon dioxide. Therefore, there are many places where trees gather more carbon dioxide in the morning. Second, the night temperature inversion layer appears more, resulting in poor air quality in the early morning. At night, the wind