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2. Health effects from noise - Wikipedia

   en.wikipedia.org/wiki/Health_effects_from_noise

   Elevated workplace or environmental noise can cause hearing impairment, tinnitus, hypertension, ischemic heart disease, annoyance, and sleep disturbance. [3] [4] Changes in the immune system and birth defects have been also attributed to noise exposure. [5] Although age-related health effects ( presbycusis) occur naturally with age, [6] in many ...

3. A Neurologist Explains Why You Can’t Get That Song Out of ...

   www.aol.com/neurologist-explains-why-t-song...

   An earworm happens when you have the “inability to dislodge a song and prevent it from repeating itself” in your head, explains Steven Gordon, M.D ., neurologist at UC Health and assistant ...

4. Noise-canceling microphone - Wikipedia

   en.wikipedia.org/wiki/Noise-canceling_microphone

   In a noisy environment, both microphones receive noise at a similar level, but the primary mic receives the desired sounds more strongly. Thus if one signal is subtracted from the other (in the simplest sense, by connecting the microphones out of phase) much of the noise is canceled while the desired sound is retained.

5. How does heat kill? It confuses your brain. It shuts down ...

   www.aol.com/lifestyle/does-heat-kill-confuses...

   Dehydration also reduces blood flow and magnifies cardiac problems, Jay said. Attacking the brain. Heat also affects the brain. It can cause a person to have confusion, or trouble thinking ...

6. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   Noise -cancelling headphones alongside a carry case. Noise-cancelling headphones are headphones which suppress unwanted ambient sounds using active noise control. This is distinct from passive headphones which, if they reduce ambient sounds at all, use techniques such as soundproofing . Noise cancellation makes it possible to listen to audio ...

7. List of Saturday Night Live commercial parodies - Wikipedia

   en.wikipedia.org/wiki/List_of_Saturday_Night...

   i-sleepPRO — This ambient sleep aid that has settings for "white noise" and "black noise"; the latter includes thumping bass music, dialogue from Tyler Perry sitcoms and the movie Friday, domestic arguments, and an old woman complaining about her foot pain. Jay Pharoah provides voice work for the device.