The connection between mental health and mental sub-health?

Mental health refers to a balanced mentality, and it is more objective and fair to look at things and treat others. Mental sub-health is between healthy and unhealthy. If mental health is sub-healthy, it can develop into unhealthy psychology, that is to say, general psychological problems may occur and serious psychological problems may develop. If we develop in the positive direction of active treatment, we will return to mental health. Mental sub-health is a psychological indicator of mental health and plays a certain early warning role. If you feel unhappy or unhappy, you should find out the reasons in time and ease your mind in time. I wish you a speedy recovery.