The Depression sometimes runs in families and may be due to heredity, learned behavior or both. Even with a genetic predisposition, it is usually a stressful or unhappy life event that triggers the onset of a depressive episode. While the exact causes of depression are unknown, several factors appear to affect its onset!
one of the causes of depression due to experiencing traumatic events. Some examples of events or circumstances that may lead to depression include torture or harassment, death of a person, problems in relationships (marriage, friendship, family, romance, and co-workers), and economic difficulties.