Bipolar disorder - Causes
What causes bipolar disorder?
The cause of bipolar disorder is not clear. Research suggests that a combination of different things can make it more likely that you will develop bipolar disorder.
You are 5 times more likely to develop bipolar disorder if someone in your immediate family, like a parent, brother or sister, has bipolar disorder. This risk is higher if both of your parents have the condition or if your twin has the condition.
Researchers have not found the exact genes that cause bipolar disorder. But different genes have been linked to the development of bipolar disorder.
Brain chemical imbalance
Different chemicals in your brain affect your mood and behaviour. Too much or too little of these chemicals could make you develop mania or depression.
Stressful life events can trigger symptoms of bipolar disorder. Such as childhood abuse and the loss of a loved one. They can increase your chances of developing depressive episodes.
You can find more information about ‘Does mental illness run in families?’ here.
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