Causes of bipolar disorder:
The National Institutes of Mental Health3 says most experts agree that Causes of bipolar disorder has no single. It is more likely the result of many factors acting together.
Genetics – some small twin studies have indicated that there is a “substantial genetic contribution” to bipolar disorder risk. People with a blood relative who has bipolar disorder have a higher risk of developing it themselves. Currently, scientists are trying to identify which genes are involved.A study by an international team of scientists reported in the journal Neuron that rare copy number variants, abnormal sequences of DNA, seem to play a major role in the risk of early onset Causes of bipolar disorder.
Biological traits – experts say that patients with bipolar disorder often have physical changes that occurred in their brains. Nobody is sure why the changes can lead to the disorder.
Brain-chemical imbalance – neurotransmitter imbalances play a key role in many mood disorders, including bipolar disorder, as well as depression and other mental illnesses. Neurotransmitters are chemicals that facilitate the communication between neurons (brain cells). Examples of neurotransmitters are serotonin, norepinephrine, and dopamine.