What’s Going On in Your Body When You Watch a Horror Movie

You can probably see where this is going. The university study found people who have two identical copies of the COMT gene were more susceptible to the actual, unadulterated fear a scary movie delivers. In other words, they're the ones screaming in the theater because their genetics are raising their anxiety levels and telling them they have every reason to be terrified. People who had two different versions of the gene were more likely to enjoy the movie and even laugh at some of the "scary" parts. You know those people. You might even be one. Maybe this is why you laugh at the goriest scenes. (Maybe.)