White room torture is a thing.
This is like the quietest room on earth. Built to stop sound as much as possible, apparently it’s so quiet you can hear your heartbeat. I think I remember the average ppl can stand it is like 12 minutes
Edit: I was wrong about time (30 mins), but the longest is about an hour. See bottom of the article.
https://www.cnn.com/style/article/anechoic-chamber-worlds-quietest-room/index.html
That’s all urban legend. The real reason no one stays in for more than half an hour is that the lab is busy and they need their anechoic chamber. Not for some rando to just hang out inside of.
I’m just sharing the info I have based on reports from a guy who works there. Check out the article