Can Pink Noise Help You Sleep?


By Dr. Mercola You probably don’t think of noise in terms of colors, but there is a rainbow of noise out there — from the familiar white noise that occurs when a TV turns to static to the higher-pitched blue noise, which sounds similar to a hissing spray of water.1 Somewhere in the middle is pink noise, gentle sound similar to that of rushing water or wind blowing through leaves on a tree. Pink noise contains frequencies from 20 hertz to 20,000 hertz, just like white noise, but the lower frequencies are louder and more powerful than the higher frequencies (white noise, in contrast, has equal power in all of its frequencies).2 However, pink noise has equal power per octave (a range of frequencies whose upper frequency limit is twice that of its lower frequency limit), which is why most people hear it as an even noise.3 To an untrained ear, pink noise may sound quite similar to white noise, but the former, it seems, may have particular promise for helping you sleep and improving other
http://articles.mercola.com/sites/articles/archive/2017/03/23/pink-noise-improves-sleep.aspx

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Author: vancouverspineanddisccentreblog

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