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  2. Sleep - Wikipedia

    en.wikipedia.org/wiki/Sleep

    Hours of sleep recommended for each age group [93] Age and condition Sleep needs Newborns (0–3 months) 14 to 17 hours Infants (4–11 months) 12 to 15 hours Toddlers (1–2 years) 11 to 14 hours Preschoolers (3–4 years) 10 to 13 hours School-age children (5–12 years) 9 to 11 hours Teenagers (13–17 years) 8 to 10 hours

  3. Sleep cycle - Wikipedia

    en.wikipedia.org/wiki/Sleep_cycle

    It is sometimes called the ultradian sleep cycle, sleep–dream cycle, or REM-NREM cycle, to distinguish it from the circadian alternation between sleep and wakefulness. In humans, this cycle takes 70 to 110 minutes (90 ± 20 minutes). [1] Within the sleep of adults and infants there are cyclic fluctuations between quiet and active sleep.

  4. Insufficient sleep and high blood pressure may raise risk of ...

    www.aol.com/insufficient-sleep-high-blood...

    Blood pressure decreases by 10% at the time of sleep onset, and shorter sleep duration can eliminate this drop in blood pressure. Blood pressure was collected during the daytime, and it is ...

  5. Here's How Much Sleep You Need According to Your Age - AOL

    www.aol.com/heres-much-sleep-according-age...

    In the one- to two-year age group, sleep needs drop again to 11 to 14 hours, and fall further, to 10 to 13 hours, from ages three to five. This is due to a somewhat slower growth rate as children ...

  6. Sleep deprivation - Wikipedia

    en.wikipedia.org/wiki/Sleep_deprivation

    The National Sleep Foundation recommends that adults aim for 7–9 hours of sleep per night, while children and teenagers require even more. For healthy individuals with normal sleep, the appropriate sleep duration for school-aged children is between 9 and 11 hours.

  7. What Is Deep Sleep? Understanding the 4 Sleep Cycles & Why ...

    www.aol.com/deep-sleep-understanding-4-sleep...

    Most people get around 1.5 to two hours of slow-wave sleep if they get eight hours of shut-eye. This stage is key to waking up refreshed and ready for the day — and it’s what you’re hoping ...

  8. Ambulatory blood pressure - Wikipedia

    en.wikipedia.org/wiki/Ambulatory_blood_pressure

    Ambulatory blood pressure, as opposed to office blood pressure and home blood pressure, [1] is the blood pressure over the course of the full 24-hour sleep-wake cycle. Ambulatory blood pressure monitoring ( ABPM ) measures blood pressure at regular intervals throughout the day and night.

  9. Sleep and metabolism - Wikipedia

    en.wikipedia.org/wiki/Sleep_and_Metabolism

    In a study with 3000 patients, it was found that men and women who sleep less than 5 hours have elevated body mass index (BMI). In another study that followed about 70.000 women for 16 years, there was a significant increase in body weight in those who slept 5 hours or less compared to those who slept 7–8 hours. [1] [2] [8]