Falling in love at first sight is one of those things you either believe in or don't. The concept of it is so fairytale-esque, it's almost hard to believe it can actually happen in reality. But according to data from Match's Singles in America study, love at first sight happens more than you probably think. “Love at first sight is relatively easy to explain,” Match’s chief scientific advisor and biological anthropologist, Dr. Helen Fisher, said in a press release. “Romantic love runs along certain electrical and chemical pathways through the brain which can be triggered instantly."