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2. Doctors Say This Type Of Noise Is Best For Deep Sleep - AOL

   www.aol.com/doctors-type-noise-best-deep...

   Smart White Noise Machine. With 10 volume settings and thousands of positive reviews, this white noise machine from SNOOZ is anything but a snoozefest—and it comes with an easy-to-use app for ...

3. Quiet PC - Wikipedia

   en.wikipedia.org/wiki/Quiet_PC

   A fanless CPU cooler based on heat pipe technology. A quiet, silent or fanless PC is a personal computer that makes very little or no noise.Common uses for quiet PCs include video editing, sound mixing and home theater PCs, but noise reduction techniques can also be used to greatly reduce the noise from servers.

4. Best noise-canceling headphones, according to Consumer Reports

   www.aol.com/news/best-noise-canceling-headphones...

   The Sennheiser PXC 550-II is one of the highest-scoring headphones in our ratings, with superb sound quality and noise canceling. The PXC 550-II is as much as $300 cheaper than many competitors.

5. Health effects from noise - Wikipedia

   en.wikipedia.org/wiki/Health_effects_from_noise

   Sound levels as low as 40 dB(A) can generate noise complaints [43] and the lower threshold for noise producing sleep disturbance is 45 dB(A) or lower. [ 44 ] Other factors that affect the annoyance level of sound include beliefs about noise prevention and the importance of the noise source, and annoyance at the cause (i.e., non-noise related ...

6. Infrasound - Wikipedia

   en.wikipedia.org/wiki/Infrasound

   The report "A Review of Published Research on Low Frequency Noise and its Effects" [54] contains a long list of research about exposure to high-level infrasound among humans and animals. For instance, in 1972, Borredon exposed 42 young men to tones at 7.5 Hz at 130 dB for 50 minutes.

7. Neurologists reveal 15 subtle migraine symptoms — that aren't ...

   www.aol.com/neurologists-reveal-15-subtle...

   For example, the Mayo Clinic says, you might see: Blind spots, which might be outlined with geometric designs. Shimmering stars or spots. Zigzag lines that slowly float across your vision. Flashes ...