As reported from Hollywood gossip site TMZ, Catherine Zeta-Jones entered a mental health treatment center for a bipolar disorder. Added by TMZ, her rep denied to them the said news.
After denying the current condition of Catherine Zeta-Jones, Catherine's reps finally told People.com,
"After dealing with the stress of the past year, Catherine made the decision to check in to a mental health facility for a brief stay to treat her Bipolar Disorder."Catherine was hospitalized at Silver Hill Hospital in Connecticut for treatment, but she has checked out.
What is Bipolar Disorder?
As described from Wikipedia:
Bipolar disorder or manic-depressive disorder, also referred to as bipolar affective disorder or manic depression, is a psychiatric diagnosis that describes a category of mood disorders defined by the presence of one or more episodes of abnormally elevated energy levels, cognition, and mood with or without one or more depressive episodes. The elevated moods are clinically referred to as mania or, if milder, hypomania. Individuals who experience manic episodes also commonly experience depressive episodes, or symptoms, or mixed episodes in which features of both mania and depression are present at the same time.[2] These episodes are usually separated by periods of "normal" mood; but, in some individuals, depression and mania may rapidly alternate, which is known as rapid cycling. Extreme manic episodes can sometimes lead to such psychotic symptoms as delusions and hallucinations. The disorder has been subdivided into bipolar I, bipolar II, cyclothymia, and other types, based on the nature and severity of mood episodes experienced; the range is often described as the bipolar spectrum.