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A risk factor is something that increases your likelihood of getting a disease or condition.

Very little is known about the risk factors for narcolepsy. Narcolepsy seems to run in some families. About 8%-30% of people with narcolepsy have another family member with the condition.

References:

Chen L, Fong SY, Lam CW, et al. The familial risk and HLA susceptibility among narcolepsy patients in Hong Kong, Chinese. Sleep. 2007;30:851-858.

Narcolepsy. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed. Updated March 6, 2013. Accessed June 3, 2013.

What is narcolepsy? National Heart, Lung, and Blood Institute. National Institutes of Health website. Available at: http://www.nhlbi.nih.gov/. Updated November 1, 2010. Accessed June 3, 2013.

Last reviewed September 2012 by Rimas Lukas, MD; Michael Woods, MD

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.