It’s no secret that coffee has a few effects on our body. Coffee helps wake us up in the morning, makes us less likely to lash out at others for no reason and, for some people, makes them have to poop.
If you assumed that it was merely the caffeine helping to grease the wheels, the video Why Does Coffee Make You Poop? goes into further detail as to why coffee and poop are besties.
[link, via designtaxi]