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  2. Slow-wave sleep - Wikipedia

    en.wikipedia.org/wiki/Slow-wave_sleep

    Slow-wave sleep (SWS), often referred to as deep sleep, is the third stage of non-rapid eye movement sleep (NREM), where electroencephalography activity is characterised by slow delta waves. [ 2 ] Slow-wave sleep usually lasts between 70 and 90 minutes, taking place during the first hours of the night. [ 3 ]

  3. Neuroscience of sleep - Wikipedia

    en.wikipedia.org/wiki/Neuroscience_of_sleep

    Waking is usually characterized by beta (12–30 Hz) and gamma (25–100 Hz) depending on whether there was a peaceful or stressful activity. [22] The onset of sleep involves slowing down of this frequency to the drowsiness of alpha (8–12 Hz) and finally to theta (4–10 Hz) of Stage 1 NREM sleep. [23]

  4. Theta wave - Wikipedia

    en.wikipedia.org/wiki/Theta_wave

    In rats, hippocampal theta is seen mainly in two conditions: first, when an animal is running, walking, or in some other way actively interacting with its surroundings; second, during REM sleep. [16] The frequency of the theta waves increases as a function of running speed, starting at about 6.5 Hz on the low end, and increasing to about 9 Hz ...

  5. Doctors Say This Type Of Noise Is Best For Deep Sleep - AOL

    www.aol.com/doctors-type-noise-best-deep...

    Sleep doctors explain the science behind the different sound frequencies and which is best. ... Doctors Say This Type Of Noise Is Best For Deep Sleep. Zoë Hecht. November 12, 2024 at 6:00 AM ...

  6. 9 Tips to Increase Deep Sleep (& How That Could Help ... - AOL

    www.aol.com/9-tips-increase-deep-sleep-125800276...

    3. Stick to a Consistent Sleep Schedule. Having a consistent bedtime routine — going to bed and waking up at the same time each day — might significantly improve your overall well-being.

  7. Why getting more deep sleep may help improve memory - AOL

    www.aol.com/why-getting-more-deep-sleep...

    A new study offers an explanation as to how deep sleep — also known as slow wave sleep — helps support the formation of memories in the brain, which could help with preventing dementia.

  8. K-complex - Wikipedia

    en.wikipedia.org/wiki/K-complex

    They are present in the sleep of 5-month-old infants, and develop with age. Between 3 and 5 years of age a faster negative component appears and continues to increase until adolescence . Another change occurs in adults: before 30 years of age their frequency and amplitude are higher than in older people particularly those over 50 years of age ...

  9. Sleep cycle - Wikipedia

    en.wikipedia.org/wiki/Sleep_cycle

    The sleep cycle is an oscillation between the slow-wave and REM ... (deep) sleep, in particular shows ... Brain wave frequency and muscle tonus is decreased. The ...

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