Don't worry - it's not your fault if you look bitchy without meaning to. It's a disorder that affects millions of women every day.
Oh, and gents: you don't get off that easily. Men can suffer from a similar condition, you know. Just watch this informative public health video, courtesy of Taylor Orci of YouTube channel Broken People.
(Via Most Watched Today)
Also on HuffPost:
An earlier version of this article stated that the video was courtesy of Funny Or Die. This has since been corrected.