After discussing sleep with you yesterday,  I didn't expect to read from your comments that a lot of you suffer from insomnia problems.   You must seriously consider properly handling this matter,  otherwise it could develop into some serious physical and mental problems.

I myself am not an insomniac.   I just occasionally do not get enough sleep.   I think that when we are having trouble sleeping,  we should not be in a hurry to get to sleep.   Instead,  we should be very calm and tranquil.   When we can't sleep,  we should not try to kill time by looking for something to do to occupy our time.   If I start reading or watching a movie when I can't sleep,  it will only make it harder for me to get to sleep.   If we try to not focus on falling asleep,  then we will gradually be able to do it.