小明一到冬天,脾气就变得特别坏,动辄与父母、老师、同学顶嘴甚至吵架,平时也不喜欢和别人交往,早晨懒得起床,学习成绩有所下降。可是在春、夏、秋季,他变得像另外一个人似的,学习进步了,脾气好多了,人也勤快了,使得父母和老师好生纳闷。其实,小明患上了新近才被人们认识的一种儿童精神疾病——季节 Xiao Ming a winter, temper becomes particularly bad, frequently with parents, teachers, classmates even mouth quarrel, usually do not like to interact with others, too lazy to get up in the morning, academic performance declined. But in the spring, summer, autumn, he became like another person, learning progress, better temper, people diligent, parents and teachers wonder why. In fact, Xiao Ming suffering from a newly-recognized childhood mental illness - the season