It’s been a while since I wrote an article because I was busy a while ago. What do you want to write about today? I found that many people actually have problems sleeping, but everyone tends to ignore it. So, today I want to talk about insomnia. There are many kinds of insomnia, and many people can fall asleep very quickly and thus decide that they have no sleep problems. In fact, sleep is very complicated, some people fall asleep all night, but dream a lot at night, in fact, is also a kind of insomnia. I have seen many people who need to sleep for more than 10 hours a day, but they are still drowsy during the day, which is actually a kind of sleep disorder. It seems that insomnia is very complicated and cannot be defined in one complete sentence, but we can define it from another perspective. I personally feel that anyone who does not feel clear-headed, relaxed and energetic the next morning needs to wonder if they have sleep problems. This shows that the proportion of sleep problems is very large, remember that 40% of the survey in our major cities have sleep problems. Sleep is very important, if not solved for a long time, the first impact is the mood, followed by your memory, attention loss, and ultimately the decline in learning and working ability and so on. I hope that we can solve the problem of insomnia in the intermediate level as soon as possible, and have a good sleep is more important than gold. The above content belongs to the science lectures, not rigorous enough to speak to the group of friends, there are inappropriate places we are more correction!