进入冬季，家长或老师常感到有些儿童这学期纪律很差，成绩下降，注意力不集中，就认为这些孩子性格恶劣、懒惰、厌恶学习，但事实并非如此，而是一种季节性情感障碍在作祟。所谓季节性情感障碍，是指随季节变化出现的一系列抑郁症状，如悲观失望，对喜悦缺乏快感，喜欢睡觉，? When entering winter, parents or teachers often feel that some children have poor discipline, poor academic performance, and poor academic performance. They think that these children are bad, lazy, and abhorrent. But this is not the case but a seasonal affective disorder characterized by cause trouble. The so-called seasonal affective disorder, refers to a series of seasonal changes in depression symptoms, such as pessimistic disappointment, lack of pleasure delight, like to sleep?