Is Narcolepsy A Hereditary Disease?

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It's unknown what causes narcolepsy. It seems that there are genes strongly associated with narcolepsy. These genes control the production of chemicals in the brain that may signal sleep and awake cycles. Some scientists think narcolepsy may be due to a deficiency in the production of a chemical called hypocretin by the brain. However, there is research showing a weak connection between the development of the disorder with genetic inheritance. Keywords: narcolepsy hereditary