秋乏是补偿夏季人体超常消耗的保护性反应。炎夏时节,人的皮肤湿度和体温升高,大量出汗使水盐代谢失调、胃肠功能减弱、心血管系统和神经系统负担增加,再加上天热睡眠质量不高,人体过度消耗了能量,失去了较多的“老本”。到了秋季,体热的产生和散发以及水盐代谢逐渐恢复到原有的平衡状态,人体进入一个生 Autumn lack is to compensate for summer extraordinary consumption of human protective response. Summer season, the human skin humidity and body temperature, sweating a large number of water and salt metabolism, gastrointestinal function weakened, the cardiovascular system and the nervous system to increase the burden, coupled with the quality of hot days sleep is not high, the human body consumes excessive energy, Lost more “old book ”. In the fall, body heat generation and distribution and water and salt metabolism gradually restored to the original state of balance, the human body into a student