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  2. 5 Great Sound Machines That Will Transform Your Sleep - AOL

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    Consider the type of sound that you prefer—nature sounds, white noise, ambient fan sounds, guided meditation, sleep stories, are some of the options you have available with today’s best sound ...

  3. Try These 12 Expert-Backed Tools to Help Boost Your Brain Health

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    Research has indicated that meditation can help assuage some of the health pitfalls of stress, which include an impact on your memory and other aspects of brain wellness. There’s a wide variety ...

  4. Audiologists Say These Are the Best Over-The-Counter Hearing Aids

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    The sleek design allows the device to fit comfortably in the ear canal (it’s about the side of a thumbnail), making it virtually invisible, and the breakthrough noise reduction technology ...

  5. Earwax - Wikipedia

    en.wikipedia.org/wiki/Earwax

    Prognosis. Prevalence. Earwax, also known by the medical term cerumen, is a waxy substance secreted in the ear canal of humans and other mammals. Earwax can be many colors, including brown, orange, red, yellowish, and gray. Earwax protects the skin of the human ear canal, assists in cleaning and lubrication, and provides protection against ...

  6. Head-related transfer function - Wikipedia

    en.wikipedia.org/wiki/Head-related_transfer_function

    HRTF filtering effect. A head-related transfer function (HRTF) is a response that characterizes how an ear receives a sound from a point in space. As sound strikes the listener, the size and shape of the head, ears, ear canal, density of the head, size and shape of nasal and oral cavities, all transform the sound and affect how it is perceived, boosting some frequencies and attenuating others.

  7. Acoustic reflex - Wikipedia

    en.wikipedia.org/wiki/Acoustic_reflex

    The acoustic reflex (also known as the stapedius reflex, [1] stapedial reflex, [2] auditory reflex, [3] middle-ear-muscle reflex (MEM reflex, MEMR), [4] attenuation reflex, [5] cochleostapedial reflex [6] or intra-aural reflex [6]) is an involuntary muscle contraction that occurs in the middle ear in response to loud sound stimuli or when the person starts to vocalize.

  8. This Viral Sleep Method Promises to Help You Doze Off in 2 ...

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    Step 2: Drop your shoulders as low as possible to release tension in your neck. Then relax all the muscles in one arm, from shoulders to fingers, and then the other. If needed, tense up muscles ...

  9. Sound effect - Wikipedia

    en.wikipedia.org/wiki/Sound_effect

    A sound effect (or audio effect) is an artificially created or enhanced sound, or sound process used to emphasize artistic or other content of films, television shows, live performance, animation, video games, music, or other media. In motion picture and television production, a sound effect is a sound recorded and presented to make a specific ...