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  2. Hypnic jerk - Wikipedia

    en.wikipedia.org/wiki/Hypnic_jerk

    A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment.

  3. Rhythmic movement disorder - Wikipedia

    en.wikipedia.org/wiki/Rhythmic_movement_disorder

    Muscle movements during REM sleep are often twitches and occur simultaneously with normal sleep. The position of the body during sleep may determine which motor symptom is displayed. For example, Anderson et al. reported that one individual showed entire body rolling movements while sleeping on his side while displaying head rolling movements ...

  4. Periodic limb movement disorder - Wikipedia

    en.wikipedia.org/wiki/Periodic_limb_movement...

    Periodic limb movement disorder (PLMD) is a sleep disorder where the patient moves limbs involuntarily and periodically during sleep, and has symptoms or problems related to the movement. PLMD should not be confused with restless legs syndrome (RLS), which is characterized by a voluntary response to an urge to move legs due to discomfort.

  5. What is a siesta? The history of the afternoon nap and its ...

    www.aol.com/lifestyle/siesta-history-afternoon...

    "The word 'siesta' comes from the Latin 'sexta,' meaning the sixth hour after someone wakes up," says Dr. Dylan Petkus, MD, MPH, a sleep researcher with Optimal Circadian Health. For example, he ...

  6. Rapid eye movement sleep behavior disorder - Wikipedia

    en.wikipedia.org/wiki/Rapid_eye_movement_sleep...

    RBD is a sleep disorder characterized by the loss of normal skeletal muscle atonia during REM sleep and is associated with prominent motor activity and vivid dreaming. [6] [2] These dreams often involve screaming, shouting, laughing, crying, arm flailing, kicking, punching, choking, and jumping out of bed.

  7. Sleep hygiene: What it is and how to establish a better ... - AOL

    www.aol.com/lifestyle/sleep-hygiene-establish...

    And while sleep hygiene is one way to protect our sleep health, keeping all of the above at bay, Martin says, "it's not an all-or-nothing game." ... on your cellphone last night, that doesn't mean ...

  8. Restless legs syndrome - Wikipedia

    en.wikipedia.org/wiki/Restless_legs_syndrome

    [97] [98] The National Sleep Foundation's 1998 Sleep in America poll showed that up to 25 percent of pregnant women developed RLS during the third trimester. [99] Poor general health is also linked. [100] There are several risk factors for RLS, including old age, family history, and uremia. The prevalence of RLS tends to increase with age, as ...

  9. Excessive daytime sleepiness - Wikipedia

    en.wikipedia.org/wiki/Excessive_daytime_sleepiness

    EDS can be a symptom of a number of factors and disorders. Specialists in sleep medicine are trained to diagnose them. Some are: Insufficient quality or quantity of night time sleep [5] Obstructive sleep apnea [6] Misalignments of the body's circadian pacemaker with the environment (e.g., jet lag, shift work, or other circadian rhythm sleep ...