Most suicides occur in the home, and most between 3pm to midnight Nearly 5,000 teenagers commit suicide yearly. There are 30 to 50 times as many attempted suicides as completed suicides. Four times as many males complete suicide than females. Female teenagers attempt suicide twice as frequently as male teenagers. Most males used violent means, such as guns, hanging, etc.
Most females uses drug overdoses.
Over half of teenage suicide victims had substance abuse problems. Almost all suicide victims have at least one mental or substance abuse disorder, and over half have more than one disorder. Suicide risk and depression may have a biological cause. Some depressions may be caused by unbalanced levels of certain brain chemicals. Biological relatives of suicides are at higher risk of suicide.