In fact, people living in this era may have some depression more or less, and the difference may be that the degree of depression is small or large. For example, some students around me may be depressed for several days because of their monthly exam results, but these people can often get out of this mood, so these people will not suffer from depression, but sometimes they will be depressed. There are still some people who will always be immersed in this kind of sadness and self-denial. Without any guidance and relief, they may be depressed for a long time.
I have a friend who took a year off school. At that time, no one knew why he dropped out of school. Perhaps it is generally felt that he was under too much pressure, because his elders were all teachers, and he probably had high expectations from childhood, but he was admitted to a poor school. Then his performance in school was not satisfactory, so he probably dropped out of school because of those family factors. But no one expected that in the end, he had to drop out of school because of depression. In fact, I usually contact and communicate with him at school. I don't think he is depressed at all, and sometimes I even think he is very lively and cheerful. But this is often the most terrible, because it does not give people a little defensive psychology.
At present, during his suspension from school, no one in the class knows whether he is at home or going to the hospital to see a doctor. But it really hurts to think about it. I usually pretend to be normal. Maybe a person is really depressed in private. Therefore, we really shouldn't treat depression as a psychological state only when we are in a bad mood. Its realization is that many people are under invisible pressure, and then there may be no window to relieve them, so they will easily suffer from this mental illness. So let's really know more about people with depression, because they are really kind.