Misophonia: Why certain sounds can make you angry
Brain scans have revealed why some people can become enraged by the sound of someone eating or breathing.
The condition, misophonia, is when some people's brains become hardwired to produce an "excessive" emotional response.
You're going to want to turn your sound on for this one - unless you have misophonia, in which case skip the first half.
Video Journalist: Hannah Gelbart