Unlike the Bermuda Triangle and whether or not John Travolta really came onto all those masseurs, some mysteries aren't really mysteries -- we're just too lazy to do the bit of research it would take to solve them.
Like morning wood, for example. (We're serious, here! Stay with us!)
Why do guys wake up with erections and what possible function could having one serve while a man is asleep?
Luckily, the good people at AsapSCIENCE decided to pull back the covers and shed some light on the hows and whys of what goes on below the belt after the lights go out.
Watch the short video above and then sit back and bask in the glory of knowing you'll now definitely be the one whipping out the best cocktail party banter at all your upcoming holiday soirées.