Bipolar disorders are caused by differences in how a person's brain and nervous system regulate basic behaviors.
The human nervous system is an amazing organic machine, creating and reaction to a complex stew of chemical, electrical, and magnetic impulses. It's constantly humming away, taking in information from all of our senses and reacting to it in ways that control every bodily activity, from basic breathing and circulation on up.
A single misstep in one of these process can set a chain of events in motion that leads to a neurological event, such as a memory lapse, a seizure, or a manic episode. If such missteps occur constantly, the person has a neurological disorder.
Brain scans can show where abnormal activity is ocurring, when a person is bipolar, or whether the brain is structured differently than usual.
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