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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 ]
Non-rapid eye movement sleep (NREM), also known as quiescent sleep, is, collectively, sleep stages 1–3, previously known as stages 1–4. Rapid eye movement sleep (REM) is not included. There are distinct electroencephalographic and other characteristics seen in each stage. Unlike REM sleep, there is usually little or no eye movement during ...
Gentle and soothing music can lead to increased delta wave activities which indicate deep sleep. [19] Several experiments have tested listening to preferred music significantly decreases cortisol levels and reduces the amount of stress experienced.
The song has a minimalist sound, with McCartney only playing a Fender Rhodes electric piano and a synthesizer and singing, and a short solo performed on acoustic guitar. "Waterfalls" was released as a single with "Check My Machine" as its B-Side and reached chart position No. 9 in the UK and No. 4 in Ireland.
Brainwave entrainment, also referred to as brainwave synchronization or neural entrainment, refers to the observation that brainwaves (large-scale electrical oscillations in the brain) will naturally synchronize to the rhythm of periodic external stimuli, such as flickering lights, [1] speech, [2] music, [3] or tactile stimuli.
Sharp waves and associated ripples are present in the mammalian brains of the species that have been investigated for this purpose, including mice, rats, rabbits, monkeys and humans. [5] In all of these species, they have been shown primarily to be involved in consolidation of recently acquired memories during the immobility and slow-wave sleep.
This spontaneous activity is classified into four main classifications based on the frequency of the activity, ranging from low frequency delta waves (< 4 Hz) commonly found during sleep to beta waves (13–30 Hz) associated with an awake and alert brain. In between these two extremes are theta waves (4–8 Hz) and alpha waves (8–12 Hz). [4]
The live music video of "Dancing on the Waves", recorded at Young Life Sharptop Cove in Jasper, Georgia, was released by We the Kingdom on August 16, 2019, on YouTube. [10] An acoustic performance video of the song recorded at the Boiler Room at Neuhoff Site, Nashville, Tennessee , was published on YouTube on November 7, 2019. [ 11 ]