Scary movies don’t feel good for your health, in that they are stressful and sometimes you scream and other times whoever you’re sitting by digs their nails into your arm. Those are hazards, but what workout is without hazards? And scary movies are exercise, according to science. The facts are in: Watching scary movies burns calories. And, interestingly, horror classics burn more calories than newer entries. The Shining, Jaws and The Exorcist are the big workouts, while more modern fare like Paranormal Activity and Saw are significantly easier on you. Only you can decide whether the burn is worth sitting up all night in your bed with all the lights on, however …