It is correct that mental health and mental health are not diametrically opposite poles, but a continuous state, which shows that there is a dynamic and continuous relationship between mental health and mental health.
Mental health and mental unhealthy are not diametrically opposed, but a continuous state, which means that a person's mental health level may change at different times, from high to low or from low to high, rather than from one extreme to the other. This means that a person's mental health level may change in a certain period of time, but this change will not suddenly change from healthy to unhealthy, nor will it suddenly change from unhealthy to healthy.
The World Health Organization (WHO) defines health as "a state of complete physical, psychological, social and moral quality, not just the absence of disease or weakness", so we can define mental health as a state of relative stability, peace and energy in psychology and spirit.
The mental health and unhealthy here can also be understood as physical health and unhealthy. Health refers to the overall physical and psychological condition within a certain level of standards, as long as it meets this standard, it can be called health. An unhealthy state is a situation that deviates from the normal level. It may be a slight discomfort, it may be a feeling of discomfort, it may be a disease, and it is possible.