“瑞雪兆丰年”,雪不仅能够滋润土地,对越冬农作物起到防冻保丰收的作用,而且对人的身体健康也有很大的益处。雪花经过气流的反复升降,能够黏附大量的烟尘、病毒和细菌,有净化空气,减少传染病发生的作用。融化的腊月雪能够杀菌消毒,治疗很多热病,如用雪水洗眼可以退赤。堆雪人、打雪仗等户外活动能增强孩子的体质,提高抵御风寒的能力,还可预防呼吸道传染病。但是玩雪不能吃雪,因为雪看起来非常洁白干净,实际上并不卫生。雪里含有烟尘、病毒、细菌等有害物质,这些病毒、细菌的耐寒力很强,如流感病毒可以在0℃以下的环境中生存一个月之久,结核杆菌在-1℃～-10℃的环境中能生存几个月到几年,所以随便吃雪对身体是有 “Ruixue Mega Year”, the snow can not only moisten the land, the winter crops play a role in frost protection Baofeng, but also on human health is also of great benefit. Snow flow through the repeated movements, can stick a lot of smoke, viruses and bacteria, purify the air and reduce the role of infectious diseases. Melting wax snow to sterilization, the treatment of a lot of fever, such as eye wash with snow water can retreat. Snowmen, snowballs and other outdoor activities can enhance the child’s physical fitness, improve the ability to withstand cold, but also prevent respiratory infectious diseases. But playing snow can not eat snow, because the snow looks very clean white, in fact, not health. Snow contains smoke, viruses, bacteria and other harmful substances, these viruses, bacteria, strong cold hardiness, such as influenza virus can survive in the environment below 0 ℃ for a month, Mycobacterium tuberculosis at -1 ℃ ~ -10 ℃ Environment can survive a few months to several years, so casually eat snow on the body there