It is not easy to maintain a very healthy state of mind and body, because modern people live too tired. Teachers are tired from work+mental fatigue, and their work is complicated. They take notes, approve homework, start classes, and pay attention to adjusting the relationship with students, parents, colleagues and leaders.
Besides, many teachers get angry easily, which is very harmful to their health. Now that there are more only children, several old people feel sorry for a child and hold it in their hands. Teachers don't reprimand and punish students like ancient teachers. "One day as a teacher, one life as a father" is an illusion. Therefore, under various pressures, teachers have poor physical resistance and are prone to illness. This requires you to learn to adjust your emotions and be a cheerful and open-minded person.