1.为什么总是疲惫不堪?高中生进入青春期后,似乎总是疲惫不堪,甚至一下课就伏在桌上睡,这种疲劳感常常与荷尔蒙变化、适应力出现问题和过度活动等因素有关。另外,高中生学习量大,大脑长时间处于兴奋状态,一般会比普通人提前两个小时醒来,因此他们常常感到精力不够,没有精神。建议:课后锻炼要有计划,一般不超过一个小时,还可安排 1. Why is it always exhausted? After high school students into puberty, it seems always tired, or even fall asleep on the table after a class, this fatigue often associated with hormonal changes, adaptability problems and excessive activity and other factors. In addition, high school students learn a lot, the brain is excited for a long time, usually wake up two hours earlier than the average person, so they often feel energy is not enough, without energy. Recommendation: after-school exercise should have a plan, usually no more than one hour, but also arrangements