Depression? Deppression is a common misspelling of depression.
Depression is not the same as a passing blue mood; it is a serious illness that affects the body, thoughts, and mood. Common symptoms include weight loss or weight gain, feelings of worthlessness, and a persistent sad or "empty" mood. Any signs of these symptoms may require medical attention. Treatment for depression may involve psychotherapy, antidepressants, or a combination of both.
(Click Depression for more information on the possible causes of depression, risk factors for this illness, and other symptoms that may indicate depression.)