Lots can be said of our modern casual hookup culture, but there is also a lot of interesting science behind the phenomenon that is the casual hookup. But where does science fit into all of this? Has anyone done any studies of hookup culture? Why do we do what we do? Why are women so lament-y about it all, and some men so gung-ho? Is casual sex in our genes? Why are some people loving it out there and some pretty angsty about one-night stands? Turns out these questions and more have been asked b…