If those chemicals are of insufficient amounts, depression may occur. A person with an underactive thyroid must take medication. A cancer patient needs treatment-surgery, radiation, chemotherapy or it will spread. While this can be true, it is not always true. Depression is a result of being out of fellowship with God.
Depression is an illness and requires medical care.
The stigmas associated with clinical depression rival those associated with homosexuality. Rosemary Kennedy is the sister of John, Robert, and Edward Kennedy. Their father Joseph Kennedy fabricated the story that Rosemary was mentally retarded when in fact she suffers from depression. Prominent persons experiencing Clinical Depression derive from varied fields and time periods. King Saul and Jonah experienced depression.