Daytime sleepiness is a common reason for many people to see a physician or other sleep expert, and it is characterized by persistent drowsiness and a general lack of energy, even after adequate sleep. In other words, if you have gotten your seven to nine hours of sleep for the night and still feel like you could take a nap soon after getting up — and that feeling continues throughout the day — you could be struggling with a disorder such as:.
The longer daytime sleepiness continues, the more it may impact your life. In my patients, I have seen many notable changes in habits and behavior that are related directly to their sleep issues. This often includes cognition effects like difficulty paying attention, struggles with decision making and problems with short-term memory. Effects like these can have a range of negative outcomes, making patients nervous about driving, more anxious in general and less productive at work.
Their health can suffer in other ways as well, such as making them more susceptible to catching colds or flu, or causing digestive problems that had not been present before. The longer their sleep problems continue, the more their quality of life is negatively impacted. If you aren't too far behind on your sleep, you may be able to do it in a weekend. A more…. Experts say you can prepare for the end of daylight saving time for days in advance. Among the recommendations is outdoor physical activity.
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Snag your new favorite pillow for travel by checking out our roundup of the very best. Health Conditions Discover Plan Connect. Medically reviewed by Stacy Sampson, D. Symptoms When does it occur? Microsleep symptoms and warning signs. When does microsleep occur?
Microsleep causes. Microsleep treatments. Safety precautions. Read this next. Medically reviewed by Gerhard Whitworth, R. Medically reviewed by Raj Dasgupta, MD. You may also experience decreased alertness and focus throughout the day. Excessive daytime sleepiness usually is the first symptom to appear and is often the most troublesome, making it difficult for you to concentrate and fully function. Sudden loss of muscle tone. This condition, called cataplexy KAT-uh-plek-see , can cause a number of physical changes, from slurred speech to complete weakness of most muscles, and may last up to a few minutes.
Cataplexy is uncontrollable and is triggered by intense emotions, usually positive ones such as laughter or excitement, but sometimes fear, surprise or anger. For example, when you laugh, your head may droop uncontrollably or your knees may suddenly buckle. Some people with narcolepsy experience only one or two episodes of cataplexy a year, while others have numerous episodes daily.
Not everyone with narcolepsy experiences cataplexy. Sleep paralysis. People with narcolepsy often experience a temporary inability to move or speak while falling asleep or upon waking. These episodes are usually brief — lasting a few seconds or minutes — but can be frightening.
You may be aware of the condition and have no difficulty recalling it afterward, even if you had no control over what was happening to you.
This sleep paralysis mimics the type of temporary paralysis that normally occurs during a period of sleep called rapid eye movement REM sleep. This temporary immobility during REM sleep may prevent your body from acting out dream activity. Not everyone with sleep paralysis has narcolepsy, however. Many people without narcolepsy experience some episodes of sleep paralysis. People with narcolepsy may have other sleep disorders, such as obstructive sleep apnea — a condition in which breathing starts and stops throughout the night — restless legs syndrome and even insomnia.
Some people with narcolepsy experience automatic behavior during brief episodes of narcolepsy. For example, you may fall asleep while performing a task you normally perform, such as writing, typing or driving, and you continue to perform that task while asleep.
When you awaken, you can't remember what you did, and you probably didn't do it well. See your doctor if you experience excessive daytime sleepiness that disrupts your personal or professional life. The exact cause of narcolepsy is unknown. People with type 1 narcolepsy have low levels of the chemical hypocretin hi-poe-KREE-tin. Hypocretin is an important neurochemical in your brain that helps regulate wakefulness and REM sleep.
Hypocretin levels are particularly low in those who experience cataplexy.
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