For every possible physical and mental feature there is a gene in our cells. So is a gene for Depression. The parents of a depressed person are at a higher risk for depression. Following types of personality traits predispose to depressive illness. People who are Impulsive Aggressive Self centered Are more likely to have depression.
Single people are more prone to depression than couples.
Similarly, studies have found divorced persons to be more prone to depression. Most of the people who feel low and depressed are given a lot of advice by friends and relatives. Following are the features that a depressed individual experiences. Poor quality of sleep. Generalized body ache - lot of poorly localized pains and aches like headaches, abdominal pains.