热天,在田间生产劳动,由于气候炎热,有时会感到突然头疼、头晕、恶心、心慌,甚至晕倒。出现这种情况,就是“中暑”了。为什么会发生中暑呢?主要原因是气温太高,而且劳动时身体产热量增加,身体里的热量散不出去;再加上大量的出汗,使人体损失很多的水分和盐分,影响人体新陈代谢的正常进行,或由于劳动时未戴草帽,头部受阳光曝晒,人就会发生中暑。 On hot days, working in the fields produces a sudden headache, dizziness, nausea, palpitation or even fainting because of the hot weather. When this happens, it is “heat stroke”. Why heat stroke? The main reason is the temperature is too high, but when labor body heat production, body heat can not be dispersed; together with a large number of sweating, the body loses a lot of water and salt, affecting the body’s metabolism Normal, or due to work without a straw hat, head sunshine exposure, people will heat stroke.