This post is generously sponsored by Randi Ellias. Last summer, I didn’t wear deodorant for three months straight (note: I was in Paris, and as a California girl, the Parisian summer might as well be winter to me). Before you stop reading and dismiss me as the most disgusting gal scientist to ever exist, hear me out! My fellow scientists and I were curious about what our body odor is, how it works, and why…