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Sam Swiller and his dog, Sully, in their home in Washington, D.C.
May 18, 2015 After swapping hearing aids for a cochlear implant, Sam Swiller's taste in music shifted dramatically, from grunge rock to folk. Now scientists are trying to improve how implants relay music.
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Noise machines to help infants fall asleep can be so loud that they pose a hazard, researchers say.
March 3, 2014 Infant sleep machines, used to mask outside noise, can exceed recommended noise limits when played at high volume and placed close to a baby's sensitive ears.
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