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  2. Child development - Wikipedia

    en.wikipedia.org/wiki/Child_development

    Also called "development in context" or "human ecology" theory, ecological systems theory was originally formulated by Urie Bronfenbrenner.It specifies four types of nested environmental systems, with bi-directional influences within and between the systems; they are the microsystem, mesosystem, exosystem, and macrosystem.

  3. Sleep disorder - Wikipedia

    en.wikipedia.org/wiki/Sleep_disorder

    An estimated 17.3% of kids between 3 and 13 years old experience confusional arousals. [62] About 17% of children sleepwalk, with the disorder being more common among boys than girls, [62] the peak ages of sleepwalking are from 8 to 12 years old. [62] A different systematic review offers a high range of prevalence rates of sleep bruxism for ...

  4. Sleep deprivation - Wikipedia

    en.wikipedia.org/wiki/Sleep_deprivation

    Sleep deprivation, also known as sleep insufficiency [2] or sleeplessness, is the condition of not having adequate duration and/or quality of sleep to support decent alertness, performance, and health.

  5. Twilight sleep - Wikipedia

    en.wikipedia.org/wiki/Twilight_sleep

    Twilight sleep (English translation of the German word Dämmerschlaf) [1] [2] is an amnesic state characterized by insensitivity to pain with or without the loss of consciousness, induced by an injection of morphine and scopolamine, with the purpose of pain management during childbirth. [3]