She suggests that American society requires us to keep our emotions inside with few outlets of release. This causes the emotional backup. Just like food that stays too long in the system, backed up emotions can become toxic. Other ways depression can intrude on a person are traumatic events or long periods of stress. Drugs and alcohol abuse can shift the chemicals in a brain and cause depression.
Depression can be hereditary or even learned in an environment.
Make no mistake, whatever the cause, depression is a serious illness and not to be treated carelessly. The consequences of untreated depression can include alcohol or drug abuse, family and work problems and chronic disability. In its worst case it can lead to suicide. Paradise Valley Community College.