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2. Rapid eye movement sleep - Wikipedia

   en.wikipedia.org/wiki/Rapid_eye_movement_sleep

   Rapid eye movement sleep (REM sleep or REMS) is a unique phase of sleep in mammals (including humans) and birds, characterized by random rapid movement of the eyes, accompanied by low muscle tone throughout the body, and the propensity of the sleeper to dream vividly. The REM phase is also known as paradoxical sleep (PS) and sometimes ...

3. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   Noise-cancelling headphones are headphones that suppress unwanted ambient sounds using active noise control (ANC). Active noise cancellation makes it possible to listen to audio content without raising the volume excessively. In an aviation environment, noise-cancelling headphones increase the signal-to-noise ratio significantly more than ...

4. 8 Headphones You Can Comfortably Wear to Sleep - AOL

   www.aol.com/8-headphones-comfortably-wear-sleep...

   Sleep PROxs. Bonamour's sleep buds are upping the ante when it comes to incorporating the latest in sleep science. These teeny tiny buds connect to the Bonamour app, which has a library of ...

5. Are Noise-Canceling Headphones Harmful to Your Ears? - AOL

   www.aol.com/noise-canceling-headphones-harmful...

   Key Takeaways: As the FDA does not regulate headphone volume, it’s up to us to self-regulate our listening volume. Noise canceling headphones can help keep your volume within a safe range, so ...

6. Neuroscience of sleep - Wikipedia

   en.wikipedia.org/wiki/Neuroscience_of_sleep

   The neuroscience of sleep is the study of the neuroscientific and physiological basis of the nature of sleep and its functions. Traditionally, sleep has been studied as part of psychology and medicine. [ 1 ] The study of sleep from a neuroscience perspective grew to prominence with advances in technology and the proliferation of neuroscience ...

7. Headphones - Wikipedia

   en.wikipedia.org/wiki/Headphones

   Headphones are also known as earphones[1] or, colloquially, cans. [2] Circumaural (around the ear) and supra-aural (over the ear) headphones use a band over the top of the head to hold the drivers in place. Another type, known as earbuds or earpieces, [1] consists of individual units that plug into the user's ear canal.