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What is Bi-Polar?
Bipolar disorder is the name used to describe a set of 'mood swing' conditions, the most severe form of which used to be called 'manic depression'.
Bipolar disorder I is the more severe disorder in terms of symptoms- with individuals being more likely to experience mania, have longer 'highs', be more likely to have psychotic experiences and be more likely to be hospitalised.
Bipolar disorder II is diagnosed when a person experiences the symptoms of a high but with no psychotic experiences. These hypomanic episodes tending to last a few hours or a few days, but longitudinal studies suggest impairment is often as severe as in bipolar I disorder.