早晨是锻炼身体的大好时光。然而,如果遇到早晨有浓雾,就不宜到户外锻炼了。因为在雾中锻炼身体,不但无益,反而有害。从雾的形成来看,在大气层结构比较稳定的条件下,天空中的水汽冷却并依附于漂浮在空气中的杂质上,从而形成了雾。因而,雾是很不卫生的。据分析,雾珠中含有酸、碱 Morning is a great time to exercise. However, if you encounter fog in the morning, it is not suitable for outdoor exercise. Because exercise in the fog, not only useless, but harmful. From the formation of the fog, the water vapor in the sky cools and attaches to the impurities floating in the air under the stable atmospheric structure, thereby forming a fog. Therefore, the fog is very unsanitary. According to analysis, the fog beads contain acid and alkali