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Sleep Disorders Health Center

Medical Reference Related to Sleep Disorders

  1. Sleep Apnea Complications - Topic Overview

    Sleep apnea can cause you to stop breathing during sleep. When you stop breathing, the oxygen levels in your blood go down and carbon dioxide levels go up. This makes your heart and blood vessels work harder and can affect your heart rate and nervous system. This can lead to complications over time, such as:Low blood oxygen levels during sleep. These low levels as well as other factors such as fragmented sleep may lead to high blood pressure in the lungs (pulmonary hypertension) and in the rest of the body (hypertension).1 Nearly 50% of people who have sleep apnea have high blood pressure.2Heart failure. Changes in the body caused by sleep apnea increase the risk of heart failure.3Irregular heart rhythms, such as atrial fibrillation.4Coronary artery disease (CAD).A greater-than-normal number of red blood cells, which may cause the blood to thicken.Death caused by blood vessel disease that affects the brain or heart (stroke or heart attack).4Failure to resume breathing (respiratory

  2. Stages of Sleep Apnea - Topic Overview

    Sleep apnea occurs when you regularly stop breathing for 10 seconds or longer during sleep. It can be mild,moderate,or severe,based on the number of times an hour that you stop breathing (apnea) or that airflow to your lungs is reduced (hypopnea). This is called the apnea-hypopnea index (AHI). Mild apnea. Mild apnea is defined as 5 to 14 episodes of apnea or reduced airflow to the lungs ...

  3. Causes of Snoring and Sleep Apnea - Topic Overview

    Enlarged tissues in the nose,mouth,or throat can block the airway,causing snoring or obstructive sleep apnea (OSA). The airway can be blocked by: Enlarged tonsils and adenoids (the most common cause of sleep apnea in children). A larger-than-normal uvula (the small,finger-shaped piece of tissue that hangs down from the roof of the mouth into the throat). See a picture of the tonsils,...

  4. Sleep Apnea: Fiber-Optic Pharyngoscopy - Topic Overview

    Fiber-optic pharyngoscopy is a procedure that allows your doctor to look into the upper part of your respiratory system. He or she may use it to help decide how to treat your obstructive sleep apnea (OSA). You remain awake during the procedure. Your doctor gives you medicine ( anesthesia ) to numb your throat and then places a thin,flexible tube (endoscope) inside your nostril and gently ...

  5. Snoring and Obstructive Sleep Apnea - Topic Overview

    Snoring is a major symptom of obstructive sleep apnea (OSA). But even though most people who have sleep apnea snore,not all people who snore have sleep apnea. Snoring occurs when the flow of air from the mouth or nose to the lungs is disturbed during sleep,usually by a blockage or narrowing in the nose,mouth,or throat (airway). If you snore and do not have sleep apnea,your snoring is ...

  6. Causes of Obstructive Sleep Apnea

    From a deviated septum to tonsillitis to alcohol use, OSA, or obstructive sleep apnea, has many possible causes. Learn more from WebMD.

  7. Obstructive Sleep Apnea: Gadgets and Devices

    Learn more from WebMD about gadgets, devices, and strategies for treating obstructive sleep apnea, including CPAP machines, mouth devices, position pillows, and the tennis ball technique.

  8. Sleep Apnea and Related Health Conditions

    Obstructive sleep apnea -- disruptive snoring -- is linked to conditions such as high blood pressure and heart disease and other hazards to your health. Learn more from WebMD.

  9. Sleep Deprivation and Memory Loss

    How does sleep affect your memory? WebMD explores the effects of sleep deprivation on memory retention and loss.

  10. Sleep Myths

    How much do you know about sleep? Test your knowledge with this WebMD quiz.

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You say you are able to function well with fewer than seven hours of sleep. Some people say they can function on four to six hours of sleep each night, but research shows that adults who get fewer than seven hours of sleep — whether for just one night or over the course of days, weeks, or months — have more difficulty concentrating and more mood problems than people who sleep seven to nine hours.

Since you usually get too little sleep, please talk to your doctor about your sleep patterns. Poor quality sleep can affect many areas of your life and health, and your doctor may be able to help you if you have insomnia or other conditions affecting your sleep.

Sleep deprivation can have both short- and long-term consequences. Learn more about the health consequences of sleep loss. If you're concerned about having trouble falling asleep or staying asleep, assess your risk for a sleep disorder.

It's not surprising you feel that you're not functioning at your best today. Some people say they can function on four to six hours of sleep each night, but research shows that adults who get fewer than seven hours of sleep — whether for just one night or over the course of days, weeks, or months — have more difficulty concentrating and more mood problems than people who sleep seven to nine hours.

Since you usually get too little sleep, please talk to your doctor about your sleep patterns. Poor quality sleep can affect many areas of your life and health, and your doctor may be able to help you if you have difficulty sleeping, have insomnia, or have other sleep disorders.

Learn more about the health consequences of sleep loss. If you're concerned about having trouble falling asleep or staying asleep, assess your risk for a sleep disorder.

It's not surprising you feel that you're not functioning at your best today. Some people say they can function on four to six hours of sleep each night, but research shows that adults who get fewer than seven hours of sleep — whether for just one night or over the course of days, weeks, or months — have more difficulty concentrating and more mood problems than people who sleep seven to nine hours.

It's good that you usually do get more sleep, since sleep deprivation can have both short- and long-term consequences. Learn more about the health consequences of sleep loss. And if you're concerned about having trouble falling asleep or staying asleep, assess your risk for a sleep disorder.

You say you are able to function well with fewer than seven hours of sleep. Some people say they can function on four to six hours of sleep each night, but research shows that adults who get fewer than seven hours of sleep — whether for just one night or over the course of days, weeks, or months — have more difficulty concentrating and more mood problems than people who sleep seven to nine hours.

It's good that you usually do get more sleep because sleep deprivation can have both short- and long-term consequences. Learn more about the health consequences of sleep loss. And if you're concerned about having trouble falling asleep or staying asleep, assess your risk for a sleep disorder.

It's not surprising you feel that you're not functioning at your best today. Some people say they can function on four to six hours of sleep each night, but research shows that adults who get fewer than seven hours of sleep — whether for just one night or over the course of days, weeks, or months — have more difficulty concentrating and more mood problems than people who sleep seven to nine hours.

Since you usually get less sleep, please talk to your doctor about your sleep patterns. Poor quality sleep can affect many areas of your life and health, and your doctor may be able to help you if you have difficulty sleeping or have insomnia or other sleep disorders.

Learn more about the health consequences of sleep loss. If you're concerned about having trouble falling asleep or staying asleep, assess your risk for a sleep disorder.

It's wonderful that you got a good night's sleep last night. Many people struggle to do so. Having a good sleep routine often is the key to getting the quality sleep night after night that your body needs for optimal health. Whether your sleep routine involves taking a warm bath, reading a book, or meditating, it's important to keep your bedtime and routine consistent every night and wake up around the same time every morning.

Click here to read more about the importance of sleep. If you're concerned about having trouble falling asleep, staying asleep, or sleeping too much, assess your risk for a sleep disorder.

It's unfortunate you're not functioning at your best today. You say you had a good quantity of sleep last night, but maybe the quality of your sleep is not as good as it could be? Having a good sleep routine — including a consistent bedtime and wake time — often is the key to getting the quality sleep night after night that your body needs for optimal health. Since you usually sleep this amount, if you often aren't feeling your best, you should consider talking to your doctor. Could you have an underlying condition? Are you feeling anxious or depressed? Have you taken medication that disrupted your sleep? Do you or could you have sleep apnea? Or do you naturally require a little bit more sleep?

Although sleep is crucial for optimal health, some research suggests that sleeping too much can also have negative consequences. Learn more about sleep. If you're concerned about having trouble falling asleep, staying asleep, or sleeping too much, assess your risk for a sleep disorder.

It's unfortunate you're not functioning at your best today. You say you had a good quantity of sleep last night, but maybe the quality of your sleep is not as good as it could be? Having a good sleep routine — including a consistent bedtime and wake time — often is the key to getting the quality sleep night after night that your body needs for optimal health. Since you usually sleep longer, if you often aren't feeling your best, you should consider talking to your doctor. Could you have an underlying condition? Are you feeling anxious or depressed? Have you taken medication that disrupted your sleep? Do you or could you have sleep apnea? Or do you naturally require a little bit more sleep?

Although sleep is crucial for optimal health, some research suggests that sleeping too much can also have negative consequences. Learn more about sleep. If you're concerned about having trouble falling asleep, staying asleep, or sleeping too much, assess your risk for a sleep disorder.

It's wonderful that you got a good night's sleep last night. Many people struggle to do so. Having a good sleep routine often is the key to getting the quality sleep night after night that your body needs for optimal health. Whether your sleep routine involves taking a warm bath, reading a book, or meditating, it's also important to keep bedtime consistent and wake up around the same time every morning.

Although sleep is crucial for optimal health, some research suggests that sleeping too much can have negative consequences. Learn more about sleep. If you're concerned about having trouble falling asleep, staying asleep, or sleeping too much, assess your risk for a sleep disorder.

It's unfortunate you're not functioning at your best today. You say you had a good quantity of sleep last night, but maybe the quality of your sleep is not as good as it could be? Having a good sleep routine — including a consistent bedtime and waking up at the same time — often is the key to getting the quality sleep night after night that your body needs for optimal health.

Since you usually get less sleep, please talk to your doctor about your sleep patterns. Poor quality sleep can affect many areas of your life and health, and your doctor may be able to help you if you have insomnia, another sleep disorder, or conditions affecting your sleep.

Learn more about the health consequences of sleep loss. If you're concerned about having trouble falling asleep or staying asleep, assess your risk for a sleep disorder.

It's wonderful that you got a good night's sleep last night. Many people struggle to do so. Having a good sleep routine often is the key to getting the quality sleep night after night that your body needs for optimal health.

Since you usually get less sleep, talk to your doctor about your sleep patterns. Poor quality sleep can affect many areas of your life and health, and your doctor may be able to help you if you have insomnia or another sleep disorder or conditions affecting your sleep.

Learn more about the health consequences of sleep loss. If you're concerned about having trouble falling asleep or staying asleep, assess your risk for a sleep disorder.

SOURCES:

Centers for Disease Control and Prevention (CDC). Effect of short sleep duration on daily activities--United States, 2005-2008. MMWR Morb Mortal Wkly Rep 2011; 60:239.

Carskadon, MA, Dement, WC. Normal Human Sleep: An Overview. In: Principles and Practices of Sleep Medicine, Fifth, Kryger, MH, Roth, et al. (Eds), Elsevier Saunders, St. Louis, MO 2011. p.16.

Harvard University: "Sleep, Performance, and Public Safety."

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