However, it is very important not to overlook a physical illness that might mimic or contribute to depression. It is not uncommon for people with depression to have symptoms of physical illness. Many physicians make the diagnosis of depression while attempting to find the cause of a patient s headache, fatigue, sleep, or other physical problems. Depression may follow a significant personal loss. For instance, the loss of a loved one, the loss of a job, or a move to a new location may trigger a depressed mood.
Some depression is caused by a chemical imbalance in the brain.
The chemical imbalances associated with depression resemble chemical imbalances in the body that are associated with other common diseases such as diabetes. Although some depression may go away on its own, people with depression can often be greatly helped with treatment. The treatment for depression consists of psychotherapy, medication, or both. A friend or family member who encourages the depressed person to seek professional help may be a lifesaver. Many people cannot lift themselves out of their depression alone.