有一位朋友,平时很开朗,工作勤劳认真,对人非常热情,喜欢社交活动。可是入冬以后,却突然变得神情消沉,思维迟钝,不爱说话,还请了好几天病假。去看望她的时候,她穿着睡衣,蓬头垢面,不想工作,不愿意出门,甚至好几天都没吃什么东西。她说总是觉得累,想睡觉却睡不安稳,而且睡再多也还是 A friend, usually very cheerful, hardworking, very passionate people, like social activities. However, after winter, but suddenly become depressed, thinking slow, do not speak, but also invited a few days sick leave. When she went to see her, she was wearing pajamas, unkempt, unwilling to work, unwilling to go out and not even eating for days. She says she always feels tired, does not sleep well, and sleeps more