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The causes of bipolar disorder likely vary between individuals and the exact mechanism underlying the disorder remains unclear. [53] Genetic influences are believed to account for 73–93% of the risk of developing the disorder indicating a strong hereditary component. [13] The overall heritability of the bipolar spectrum has been estimated at ...
Like many other mood disorders, the causes of bipolar are similar to the risk factors. Some other environmental or lifestyle risk factors that could increase the risk of triggering a mood episode ...
Empirical evidence, combined with treatment considerations, led the DSM-IV Mood Disorders Work Group to add BP-II as its own entity in the 1994 publication. Only one other mood disorder was added to this edition, indicating the conservative nature of the DSM-IV work group. In May 2013, the DSM-5 was released. Two revisions to the existing BP-II ...
The "kindling model" of mood disorders suggests that major environmental stressors trigger initial mood episodes, but as mood episodes occur, weaker and weaker triggers can precipitate an affective episode. This model was initially created for epilepsy, to explain why weaker and weaker electrical stimulation was necessary to elicit a seizure as ...
Bipolar disorder is a mental disorder with cyclical periods of depression and periods of elevated mood. [1] The elevated mood is significant and is known as mania , a severe elevation that can be accompanied by psychosis in some cases, or hypomania , a milder form of mania.
Bipolar disorder, cyclothymia, disruptive mood dysregulation disorder, dysthymia, major depressive disorder, premenstrual dysphoric disorder, seasonal affective disorder Causes Family history, previous diagnosis of a mood disorder, trauma, stress or major life changes in the case of depression, physical illness or use of certain medications.
Bipolar I disorder (BD-I; pronounced "type one bipolar disorder") is a type of bipolar spectrum disorder characterized by the occurrence of at least one manic episode, with or without mixed or psychotic features. [1] Most people also, at other times, have one or more depressive episodes. [2]
Bipolar disorder, previously known as manic depression, is a mental disorder that causes periods of depression and periods of abnormally elevated mood. The altered mood is significant and is known as mania or hypomania , depending on its severity, or whether symptoms of psychosis are present.