It is a chemical imbalance in the brain and can strike people regardless of age, race or economic position. The illness can appear after a triggering event or for no apparent reason. It is a myth that depression is part of the aging process. Talk of worthlessness, not being needed anymore, excessive and unwarranted guilt.
Alcoholism can mask an underlying depression.
It is critical that before a diagnosis of depression is made, a complete physical examination is completed. Family history of depressive illness should also be noted, due to the genetic component of brain illnesses. Statements of hopelessness, helplessness or worthlessness. Preoccupied with death. Suddenly happier, calmer.