I Am a Bad Person Who Can't Stop Laughing at This Clip of Gavin DeGraw Falling on Ice

I’m not sure what specific primal trigger makes pratfalls funny. According to some very science-y research, watching someone fall down, provided it’s in a non-serious context, falls into something called a “play frame,” which can create an unusual psychological response in a human brain. When “play frame” is combined with something called “incongruity”—the brain’s response to an unexpected, out-of-the-norm event—it can activate certain neurons that manifest in amusement.