Halloween (Oct 31)

What exactly happens when we get scared? How does our brain make our body react? Hank takes us to the simplest part of the complex system of our brains and nervous systems: the neuron.

The scariest night of the year is here. Halloween has a long tradition of frightful sounds and deathly noises but why do some things sound scary?

At this very moment, people are lining up somewhere to scare themselves, be it with a thrill-ride or a horror movie. In fact, in October of 2015 alone, about 28 million people visited a haunted house in the US. But you might wonder: What could possibly be fun about being scared?

This 5-minute video examines why we find some sounds scary or creepy. Learn about the biological science behind our fearful reaction to some sounds.