insomnia is a sleep sustained considerable time unsatisfactory quality or quantity of symptoms, difficulty falling asleep, and sleep fitfully and wake up early is the most common symptoms of insomnia.
失眠是一种持续相当时间的睡眠的质或量的令人不满意的癥状,入睡困难、睡眠中断易醒和早醒是失眠患者最常见的癥状。