They say that laughter is contagious, but in one German subway car, it has turned into an outright epidemic! 

So what exactly has caused this irrepressible outbreak of giggles? Something we like to call the domino effect!

As part of the Berlin Laughter Project, a well-constructed plan was devised to contaminate an unsuspecting group of travelers with laughter. Why? Simply for the sake of laughter!

What starts as one infectious giggle quickly turns into a flash-mob-of-sorts of nonstop chuckles! I’d say this video is clear proof that laughter truly is contagious.

I guarantee you won’t be able to hold back a few snickers after watching this video. SHARE the love and pass it on!