Depression is almost always accompanied by insomnia.
抑郁症几乎总是伴有失眠。
Acute insomnia means consistent inability to sleep well for a period of three weeks to six months.
严重失眠意味着连续三周到六个月都睡不好觉。
Telling yourself to stop being anxious when you're feeling anxious is a bit like telling yourself to fall asleep when you have insomnia—it doesn't work.