Causes of Bipolar Disorder
Bipolar disorder can affect anyone, regardless of race, sex, education, occupation, or income. The disorder can appear at any age, although it frequently occurs for the first time in early adulthood. Bipolar disorder can run in families, but genetics do not completely explain who gets it and who does not. It is important to note that some people with the illness have no family history of bipolar disorder whatsoever. Heredity, however, may be a risk factor. Although stress does not cause bipolar disorder, it can be a contributing factor.
Heredity
A person with close relatives who have bipolar disorder is more likely to be affected by the illness—this is what is known as a "genetic predisposition." Not everyone with the condition has relatives with bipolar disorder. But, according to the Child & Adolescent Bipolar Foundation, your chance of developing the illness greatly increases if you have a family history of bipolar disorder, including:
- Parents — When one parent is bipolar, each child has a 15% to 30% chance of developing the condition. When both parents have the illness, the risk jumps to between 50% and 75%
- Siblings — If you have a brother or sister with bipolar disorder, you have a 15% to 25% chance of developing the illness
Stress
When a person is at risk for bipolar disorder, a serious event or illness can sometimes bring on an episode of mania or depression. These "triggers" include:
- Chronic illness
- Stress
- Hormonal changes
- Loss of a loved one
- Drug abuse
- Lack of sleep
- Hypothyroidism
- Antidepressant medications (they can cause a manic episode if you are prone to bipolar disorder)
Talk to Your Doctor
If you have additional questions or concerns about this topic, talk to your doctor.
ZYPREXA is not indicated for bipolar depression.
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