Depression as a communicable disorder.
'Communicable disorder' can be defined as a disorder capable of being transmitted in the form of negative emotion(s) from living or non-living being(s) to susceptible host. Thus, communicable disorder is transmitted from the source or reservoir of disorder to the susceptible host. The source of disorder can be defined as the living or non-living being from which the disorder in the form of negative emotion(s) gets transmitted to the susceptible host. The reservoir of disorder can be defined as the living or non-living being in which the negative emotion(s) lives, on which it depends primarily for survival, and where it preserves and reproduces itself in such a manner that it can be transmitted to the susceptible host. Depression is a disorder and can be transmitted in the form of negative emotion(s) and therefore can be considered to fall under the category of communicable disorder. The detection and depression of the source and reservoir of depression can not only help in its diagnosis and treatment but can also prevent its spread. The paper proposes a study to help calculate the percentage susceptibility of an individual to depression and a means to treat depression by depressing the source and reservoir of depression. The paper also proposes a new word, Emotional immunization and defines it as that as that positive activity of emotion(s), which leads to its stabilization when, subjected to negative emotion(s).