Euthymia is a word used for indicating a normal non-depressed, reasonably positive mood. It is distinguished from euphoria, which refers to an extreme of happiness, and dysthymia, which refers to a depressed mood. Look up euphoria in Wiktionary, the free dictionary. ... Dysthymia or dysthymic disorder is a form of the mood disorder of depression characterized by a lack of enjoyment/pleasure in life that continues for at least two years. ...
The term is also sometimes used referring to the neutral mood (absence of a depressive or manic cycle) that some people with bipolar disorder experiences with varying Bipolar disorder (previously known as manic depression) is a diagnostic category describing a class of mood disorders where the person experiences states or episodes of depression and/or mania, hypomania, and/or mixed states. ...