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Bipolar disorder is a mood disorder characterized by alternating periods of manic (elevated) and depressed mood.While the exact cause and mechanism of bipolar disorder remain unknown, ongoing research focuses on uncovering its biological origins.
Sometimes patients can experience extreme cycling where they experience four or more episodes of mania and major depression in one year. [1] In addition to affecting mood, people who have bipolar disorder often deal with impaired cognitive abilities, where memory, speech, attention and decision-making skills are all impacted.
The biology of depression is the attempt to identify a biochemical origin of depression, as opposed to theories that emphasize psychological or situational causes. Scientific studies have found that different brain areas show altered activity in humans with major depressive disorder (MDD). [1]
The single most telling symptom of bipolar disorder is the episodic oscillation between high and low mood states — characteristic shifts between depression, normal mood, and mania.
Risk factors for mental illness include psychological trauma, adverse childhood experiences, genetic predisposition, and personality traits. [7] [8] Correlations between mental disorders and substance use are also found to have a two way relationship, in that substance use can lead to the development of mental disorders and having mental disorders can lead to substance use/abuse.
Bipolar disorder; Other names: Bipolar affective disorder (BPAD), [1] bipolar illness, manic depression, manic depressive disorder, manic–depressive illness (historical), [2] manic–depressive psychosis, circular insanity (historical), [2] bipolar disease [3] Bipolar disorder is characterized by episodes of mania or hypomania and depression ...
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