老年人易发生中暑,是因为老年人的心血管及汗腺功能减退,对高温气候的适应能力差,体内积热不能及时散发。老年人神经中枢对缺水反应不太敏感,常因“不渴”而不愿喝水,而夏季多饮水正是预防中暑的有效手段之一。根据中暑的轻重程度和临床表现,一般可分为先兆中暑、轻症中暑和重 Stroke prone elderly people, because the elderly cardiovascular and sweat gland dysfunction, poor adaptability to high temperatures, the body heat can not be distributed in time. Nerve center of the elderly is not sensitive to water reactions, often because of “not thirsty” and do not want to drink water, and drink more water in summer is an effective means of prevention of stroke. According to the degree of severity of heat stroke and clinical manifestations, can be divided into threatened stroke, mild heat stroke and weight