Hypersomnia / Daytime Sleepiness Directory
Hypersomnia/daytime sleepiness is episodes of excessive sleepiness during the day. Follow the links below to find WebMD's comprehensive coverage about how hypersomnia/daytime sleepiness occurs, how it's diagnosed, how to treat it, and much more.
Medical Reference
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Sleep Disorders and Hypersomnia Treatment
WebMD explains various treatments for hypersomnia, or excessive sleepiness.
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Sleep and Hypersomnia
WebMD looks at the condition called hypersomnia, characterized by excessive daytime sleepiness.
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Causes of Extreme Fatigue and Exhaustion
WebMD helps you recognize when being tired goes beyond what's considered normal. Learn about conditions associated with fatigue.
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Daytime Fatigue: The Cost of Insomnia
How does daytime fatigue affect your health? Get answers and tips from the experts at WebMD.
Features
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How to Stay Awake After an All-Nighter: Coffee and Other Tips
WebMD discusses tips for staying awake and alert after staying up all night studying or working.
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Fighting Off Sleepiness: Myths and Facts
Sleepiness affects the daily activities of 40% of Americans, say sleep exerts at Stanford University. No wonder we cling to so many fallacies about how to get by on little sleep. But what really works? What’s just a myth? Here are the facts.
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Sleep Loss and Depression
Lack of sleep and depression often go together. And treating one can help treat the other.
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What's Causing You to Be Sleepy?
Are you sleepy all the time? Find out what could be causing your excessive sleepiness, from working shifts to an underlying sleep disorder.
Video
Slideshows & Images
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Fighting Fatigue and Sleepiness on the Road
See the surprising dangers of driving sleepy. Learn what increases your risk of a car accident and tips to keep you safe whether it is insomnia, narcolepsy, or something else making you tired.
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A Visual Guide to Sleep Disorders
Pictures show you the symptoms, causes, tests, and treatments for sleep problems.