AsapSCIENCE’s Mitchell Moffit and Gregory Brown tackle the hard science behind early morning boners. You might be surprised to learn that a full bladder can lead to an erection, ironic, since having an erection makes it ridiculously difficult to empty said bladder. I prefer the long distance approach, rather than the angling of the johnson from close in tactic.
Now, if they can just explain nocturnal emissions. [via io9]