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Check a Symptom

What is considered normal? When should you be concerned? Check a symptom with our symptom checker, if you have not already been diagnosed. It will tell you exactly what to look for and when a trip to the doctor is in order.

Sleep Disorders & Their Symptoms

  • Narcolepsy Symptoms
    The word narcolepsy comes from two Greek words roughly translated as "seized by numbness". Read our narcolepsy guide to learn about narcolepsy symptoms, causes and treatment.
  • Insomnia Symptoms
    Approximately 60 million Americans each year suffer from insomnia. Insomnia can cause daytime fatigue, irritability, and impaired performance. Read our insomnia guide to learn more about the symptoms, causes and treatment of Insomnia.
  • woman sleeping
    Snoring
    Snoring is common in adults and usually is not an indication of an underlying disorder. Sometimes, however, snoring can be a sign of a serious sleep disorder called sleep apnea.
  • Sleep Apnea
    Sleep Apnea Symptoms
     Sleep Apnea is a disorder in which a person stops breathing during the night, perhaps hundreds of times, usually for periods of 10 seconds or longer and sometimes for as long as a minute.
  • Restless Leg Syndrome
    Restless legs syndrome is a movement disorder that causes uncomfortable sensations in the legs. These sensations typically are worse during periods of rest, especially just before sleeping at night but also during daytime periods of inactivity.

Understanding Sleep

  • doctor filling out patient chart
    What You Need to Know About Sleep
    Whether it’s you or a loved one having trouble sleeping, we’ve broken down the basics to help you understand every aspect of sleep.
  • books
    Sleep Disorder Guide
    Sleep disorders involve any difficulties related to sleeping, including difficulty falling or staying asleep, falling asleep at inappropriate times, excessive total sleep time, or abnormal behaviors associated with sleep.

Sleep Disorders & Their Symptoms

  • drowsy man yawning
    Daytime Drowsiness Symptoms
    When drowsiness occurs most of the time or causes a person to fall asleep at inappropriate times, quality of life and performance can be affected.
  • brain and head
    Nightmares and Sleep Terrors Syndrome
    Sleep terrors (also called night terrors or pavor nocturnus) are a related disorder that usually occurs in young children. Sleepwalking and sleep terrors tend to run in families.
  • Sleepwalking
     A person who is sleepwalking walks or makes other movements that seem purposeful in a state of partial wakefulness from deep sleep.
  • young man who's drowsy or sleepy
    Fatigue Symptoms
     Fatigue is different from drowsiness. In general, drowsiness is feeling the need to sleep, while fatigue is a lack of energy and motivation. Drowsiness and apathy (a feeling of indifference or not caring about what happens) can be symptoms of fatigue.
  • Chronic Fatigue Syndrome
    While debilitating fatigue is the hallmark of chronic fatigue syndrome (CFS), a feeling of weariness is not, by itself, a sure sign of this illness. People with CFS have a combination of symptoms, including sore throat, swollen glands, low­grade fever, muscle pain, and confusion.

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What Our Community is Saying...

  • How Sleep Deprivation Affects Your Health
    Today let's focus on other health effects of sleep deprivation on the body. It should be noted that much of the research in this area is evolving and we are constantly learning more about the bad effects of sleep loss.
  • 5 Tips For A Good Night's Sleep
    Here are some tips to help you chase the stress away and enjoy a restful night of slumber: Create a sleep ritual - Make a commitment that your bedroom will be a place of "peace and quiet."  Do not use that time and space to discuss finances, problems with the kids, etc.
  • Treating Sleep Apnea
    Sleep apnea is a disorder that causes the cessation of breathing many times during the night. That is, someone suffering from sleep apnea will periodically gasp or momentarily stop breathing during the night. This, in turn, causes sleep deprivation and puts a strain on the entire body.