Why Is Yawning Contagious?

05.16.2019 - By Stupid Genius with Emma Chamberlain

Download our free app to listen on your phone

Whenever you’re around someone else, and they yawn, do you find yourself yawning too? Why do we do that? Well... you and Emma are about to find out. Can she guess the right answer?

More episodes from Stupid Genius with Emma Chamberlain