what causes bipolar disorder
researchers have discovered that some people with bipolar disorder have biochemical imbalances of hormones and certain neurotransmitters in the brain especially dopamine serotonin norepinephrine and acetylcholine 1an over secretion of cortisol a stress hormoneesearchers have discovered that some people with bipolar disorder have biochemical imbalances of hormones and certain neurotransmitters in the brain especially dopamine serotonin norepinephrine and acetylcholine 1