It is relatively easily treatable with up to eighty percent of those treated reporting significant improvement. Unfortunately, many people who are depressed do not present themselves for treatment. Depression and mania are classified as mood disorders. They have also been known as Affective Disorders. They can occur separately or in combination.
Depression can range from mild to moderate to severe.
It can be brief or long lasting. Lack of interest in or deriving pleasure from most activities. Insomnia or hypersomnia. Agitation or psychomotor retardation. Lack of energy.