Depression is one of the most common psychological problems. Each year over 17 million Americans experience a period of clinical depression. Thus, depression affects nearly everyone through personal experiences or through depression in a family member or friend. Depression can interfere with normal functioning, and frequently causes problems with work, social life and family life. It causes pain and suffering not only to those who have a disorder, but also to those who care about them. Serious depression has been known to destroy family life as well as the life of the depressed person. According to Psychology Information Online, depression is a psychological condition that changes how a person thinks and feels, and it also affects their social behavior and sense of physical well being. Depression has been called a "whole body" illness because of the many things the illness affects. Depression affects everyone. According to Psychology Information Online, women are more at risk for depression. This is due to factors that are directly related to women such as reproductive, hormonal, genetic or other biological factors; abuse and oppression; interpersonal factors; and certain psychological and personality characteristics. In general, it has been found that people who have low self-esteem, who consistently view themselves and the world with pessimism, or who are readily overwhelmed by stress are more prone to depression. Psychologists often describe social learning factors as being significant in the development of depression, as well as other psychological problems. A serious loss, chronic illness, relationship problems, work stress, family crisis, financial setback, or any unwelcome life change can trigger a depressive episode. Very often, a combination of biological, psychological, and environmental factors are involved in the development of depressive disorders, as well as other psychological problems (Psychology Information On...