Some of the symptoms of depression may be the result of a different condition. Low energy level and fatigue may be symptoms of medical conditions, such as low thyroid functioning, which can be diagnosed easily by means of a simple blood test. But there are other conditions as well that can masquerade as depression. A [...]

Bipolar manic depression is a disorder characterized by periods of major depression alternating with periods of elevated mood. When those periods of elation are severe, they are known as mania and the diagnosis is bipolar I. When the periods of elation are relatively mild, or hypomanic, the diagnosis is bipolar II. About 25% of the [...]