Scientists have actually pinpointed the range in which we find sounds particularly painful: 2,000-4,000 Hertz (no pun intended). Silverware scraping across a plate falls within this range, and the reason that and the aforementioned activities affect us the way they do may point out a vulnerability in the way the human ear is built. The shape of our ear canals amplify things within this range especially, and one of the only upsides of getting your ears blown out by loud noises is that the ability to hear these sounds will be one of the first things to go.
"I had to give up playing heavy metal guitar, but on the bright side, I've been employee of the month at the balloon animal factory five times running."
The effects aren't only psychological -- 2kHz-4kHz scrapes and squeaks can physically cause our blood pressure and heart rate to shoot up as well. Why the hell would our bodies do that us? Well, it's thought that this reaction may have evolved to put us on special alert for sounds like a baby crying or someone screaming for help. Researchers are hoping to use what they've learned to assist people who make appliances like vacuum cleaners and such less annoying. Apart from how nice that would be for us, we know a few family dogs that would certainly be grateful for an innovation like that as well.
Hoover could hire Sarah McLachlan as a spokesperson, and everybody would make a bundle.
You can pre-order E. Reid Ross' new book on Amazon and Barnes & Noble.
2016 is almost over. Yes the endless, rotten shit hurricane of a year which took away Bowie, Prince and Florence Henderson and gave us Trump, Harambe and the Zika virus is finally drawing to a close. So, to give this bitch a proper viking funeral, Jack O'Brien and the crew, which includes Dan O'Brien, Alex Schmidt, and comedian Caitlin Gill, are going to send out 2016 with Cracked's year in review in review. They'll rectify where every other year-in-review goes wrong by giving some much needed airtime to the positive stories from the 2016 and shedding light on the year's most important stories that got overlooked. Get your tickets here.
Also check out 6 Freaky Things Your Body Does (Explained By Science) and 5 Weirdly Satisfying Scientific Explanations For Superpowers.
Subscribe to our YouTube channel, and check out 4 Obnoxious Old People Behaviors (Explained By Science) and other videos you won't see on the site!
Follow us on Facebook, and let's be best friends forever.