What are the most destructive emotions? There are some basic ones and others are derivates. Psychologists and psychotherapeutists suppose that all actions and emotions that are destructive are described in Bible (book of books). Have you ever thought why the sins were called "deadly sins"? Because, they drive you into despair they are destructive for that one who falls from grace… But this article is not for religious purposes, just think about it.
So, you destroy yourself mentally and physically if you often experience:
Fear, it is suggested to be the basic emotion for all other ones. It is assumed to be in the root of any negative emotion. The death anxiety is the basic fear for all human; even it is masked by other emotions. Fear (without regard to if expressed or not) causes skin diseases, hyposomnia, laryngopathy and inflammation of the lungs, alcoholism, etc. The deep this emotion the serious problems it causes. Think before forcing your little son to mask his fear;
Anger, is a badly broken emotion. It destroys your immune system, causes hypertension, liver deceases. An angry person provokes impertinence from other people and intensifies stress.