Why Do Men Get “Morning Wood”?

Why do men tend to wake up with “morning wood”? You know, when you wake up in the morning sleepy yet that special part is alert and ready for action.

Here’s the Sex-Ed class you never got in school! Asap Science looks at the hard facts and some of the biology of “morning wood”, otherwise known as nocturnal penile tumescence  to discover the mechanism behind this phenomenon.

Asap Science is written and created by Mitchell Moffit (twitter @mitchellmoffit)
and Gregory Brown (twitter @whalewatchmeplz)