Causes of Bipolar Disorder
Bipolar disorder is caused by multiple factors that act together. It may result as a result of some chemical imbalance in the brain. Chemical imbalance of norepinephrine, a neurotransmitter, may cause Bipolar disorder. High or low levels of dopamine and serotonin are also believed to play a part in the development of this disorder.
Heredity and family genes are also responsible for the onset of manic depressive disorder. Family members are at risk of inheriting this disease, especially if a person has an identical twin who is suffering from this condition.
Some kind of stress is required to trigger a manic or depressive episode. Emotional stress, substance abuse, any illness or stressful event seem to contribute to the onset of Bipolar.