What Causes Bipolar Disorder?
There is no single cause for bipolar disorder. Indeed, like all psychological disorders, bipolar disorder is a complex condition with multiple contributing factors, including:
Genetic: Bipolar disorder tends to run in families, so researchers believe there is a genetic predisposition for the disorder. Scientists also are exploring the presence of abnormalities on specific genes.
Biological: Researchers believe that some neurotransmitters, including serotonin and dopamine, don’t function properly in individuals with bipolar disorder.
Environmental: Outside factors, such as stress or a major life event, may trigger a genetic predisposition or potential biological reaction. For instance, if bipolar disorder was entirely genetic, both identical twins would have the disorder. But research reveals that one twin can have bipolar, while the other does not, implicating the environment as a potential contributing cause.
What Are the Different Types of Bipolar Disorder?
Bipolar I is considered the classic type of bipolar disorder. Individuals experience both manic and depressive episodes of varying lengths.
Bipolar II involves less severe manic episodes than bipolar I; however, their depressive episodes are the same.
Cyclothymia is a chronic but milder form of bipolar disorder, characterized by episodes of hypomania and depression that last for at least two years.
Mixed episodes are ones in which mania and depression occur simultaneously. Individuals might feel hopeless and depressed yet energetic and motivated to engage in risky behaviors.
Rapid-cycling bipolar individuals experience four or more episodes of mania, depression or both within one year.
History of illness:
The terms used for the bipolar extremes, ‘melancholy’ (depression) and ‘mania’ both have their origins in Ancient Greek. ‘Melancholy’ derives from melas ‘black’ and chole ‘bile’, because Hippocrates thought that depression resulted from an