Gujarat Earthquake Post your messages here on the health board Depression Depression is a medical illness like diabetes or high blood pressure. People don't choose to be depressed.
Depression is an illness.
It's twice as common in women as in men. The exact cause of depression is not known. Doctors think it may be caused by a chemical imbalance in the brain. The imbalance could be caused by your genes or by events in your life. When there aren't enough of these messengers, certain messages don't get carried to some areas of the brain.