To sum it all up, your own sound is what will drive you crazy. Imagine a pulsating headache that keeps on coming back. There'll be the highs and the lows and if you're unlucky, the highs will keep on getting higher.

There is a silent room that is 99.99% sound absorbant. To achieve this level of sound absorbance, it definitely wasn't cheap, $1.5 million to be exact. It is so quite, that no one has been able to last longer than 45 minutes within this room. It might sound like a super easy world record to obtain, but is it worth risking insanity?