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 oneselfUndue pessimismA feeling of constant helplessnessUncalled 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 c.