人们为什么喜欢在山林、海滨、湖畔或郊野散步和游览?据现代科学测定,这些地方不但空气新鲜,而且还含有大量的负离子,即人们所说的“长寿素”、或叫“空气维生素”。这种“空气维生素”的产生,是由于太阳辐照、雷电运动、水花撞击等物理作用,使空气分子电离成带正电荷和带负电荷的正、负离子而形成的。空气负离子对人类生命活 Why do people like to take walks and excursions in the mountains, seaside, lakeside or countryside? According to modern science, these places not only have fresh air, but also contain a large amount of negative ions, called “longevity factors” or “vitamins of the air.” This “vitamin of the air” is generated due to the physical effects of solar radiation, thunderstorms and water impact, and ionization of air molecules into positive and negative ions with positive and negative charges. Air negative ions live on human life