Because marijuana is a schedule 1 drug it's rather hard to study. Not that it should matter because any adult should be able to put whatever they want in their

Because marijuana is a schedule 1 drug it's rather hard to study. Not that it should matter because any adult should be able to put whatever they want in their body. http://popsci.com/science/article/2013-04/why-its-so-hard-scientists-study-pot http://popsci.com/science/article/2013-04/why-its-so-hard-sc...