Skip to content
    Select An Article

    Understanding Sleep Problems -- The Basics

    (continued)
    Font Size
    A
    A
    A

    What Are Sleep Disorders? continued...

    Sleep Apnea

    Sleep apnea occurs when the upper airway becomes completely or partially blocked, interrupting regular breathing for short periods of time -- which then wakes you up. It can cause severe daytime sleepiness. If left untreated, severe sleep apnea may be associated with high blood pressure and the risk of stroke and heart attack.

    Pregnancy and Sleep

    Women often experience sleepless nights and daytime fatigue in the first and third trimesters of their pregnancy. During the first trimester, frequent trips to the bathroom and morning sickness may disrupt sleep. Later in pregnancy, vivid dreams and physical discomfort may prevent deep sleep. After delivery, the new baby's care or the mother's postpartum depression may interrupt sleep.

    Narcolepsy

    Narcolepsy is a brain disorder that causes excessive daytime sleepiness. There is sometimes a genetic component, but most patients have no family history of the problem. Though dramatic and uncontrolled "sleep attacks" have been the best-known feature of narcolepsy, in reality many patients do not have sleep attacks. Instead, they experience constant sleepiness during the day.

    Restless Legs Syndrome

    In people who have restless legs syndrome, discomfort in the legs and feet peaks during the evening and night. They feel an urge to move their legs and feet to get temporary relief, often with excessive, rhythmic, or cyclic leg movements during sleep. This can delay sleep onset and cause brief awakening during sleep. Restless legs syndrome is a common problem among middle-aged and older adults.

    Nightmares

    Nightmares are frightening dreams that arise during REM sleep. They can be caused by stress, anxiety, and some drugs. Often, there is no clear cause.

    Night Terrors and Sleepwalking

    Both night terrors and sleepwalking arise during NREM sleep and occur most often in children between the ages of 3 and 5 years old. A night terror can be dramatic: Your child may wake up screaming, but unable to explain the fear. Sometimes children who have night terrors remember a frightening image, but often they remember nothing. Night terrors are often more frightening for parents than for their child. Sleepwalkers can perform a range of activities -- some potentially dangerous, like leaving the house -- while they continue to sleep.

    Next Article:

    Today on WebMD

    fatigued senior woman
    We’ve got 10 tips to show you how
    Man snoring in bed
    Know your myths from your facts.
     
    Young woman sleeping
    What do your dreams say about you?
    woman eith hangover
    It’s common, and really misunderstood.
     
    Young woman sleeping
    Quiz
    Cannot sleep
    Video
     
    child sitting in bed
    Article
    Woman with insomnia
    Quiz
     
    nurse sleeping
    ARTICLE
    Foods That Help Or Harm Your Sleep
    SLIDESHOW
     
    Insomnia 20 Tips For Better Sleep
    Slideshow
    Pain at Night
    ARTICLE