What is Hypersomnia?
{{No sources|date=November 2024}} [[File:Narcoleptic Minute 006 0001.jpg|thumb|A teenager suffering from Narcolepsy, a well-known hypersomnia.]] '''Hypersomnia''' is a medical condition which is characterized by unusual sleepiness. People with hypersomnia easily feel sleepy during the day, and fall asleep. Not to be confused with: The condition where people wake up often during the night and have trouble sleeping through the night is called [[insomnia]], and falling to sleep during the day is called [[narcolepsy]]. Both of these are different, but like hypersomnia are a [[sleep disorder]]. Hypersomnia affects about five percent of the population, or about one of twenty people. Very often, people with [[sleep apnea]] suffer from hypersomnia. Hypersomia can also occur with other conditions, such as [[Mood disorder|mood disorders]]. If the hypersomnia is caused by a problem with the brain or nervous system, it is called '''primary hypersomnia'''. Narcolepsy is an example of a primary hypersomnia. If the hypersomnia is the effect of another condition, it is usually called '''secondary hypersomnia'''. Examples of secondary hypersomnias include someone losing [[consciousness]] because of [[epilepsy]]. Sleep apnea, cited above, is one of the most common forms of secondary hypersomnia. Certain [[Drug|drugs]] can also cause (secondary) hypersomnias. Primary hypersomnias are very rare. Secondary hypersomnias are quite common. {{stub}} [[Category:Sleep disorders]]