Depression is a mental state marked by melancholy, pessimism or dejection. Depression can also be defined as a psychotic condition characterized by stuporous withdrawal from reality and intense guilt feelings.

Depression is characterized by the following:

Loss of confidence in oneself

Undue pessimism

A feeling of constant helplessness

Uncalled for or unexplainable mood changes-i.e an abrupt switch from happiness when nothing has happened to warrant it.

Rudeness or aggression that is without apparent cause or which is occasioned by some trivial incident.

An unreasonable demand for perfectionism, not only in oneself but also in one