One Mistake Means Certain Death: These Fearless Athletes All Have One Thing in Common, and It Might Not Be What You Think

Clinically Fearless

Alex Honnold underwent a brain scan before shooting his documentary; Free Solo. The doctors that were conducting the scan found something incredibly shocking. Alex Honnold’s amygdalas did not work when prompted, meaning that he physically cannot feel fear, anger, survival instincts, or the fight or flight response like the average person.

The More You Know

Peanuts grow underground.
Mysterious sand dune holes baffled Indiana for years.
A quarter of all the bones in your body are in your feet.
Dogs can learn up to 165 words.

Post originally appeared on Upbeat News.