

I’m not sure that’s a very good measure of fear, though.
If you showed me an average jump-scare-infused “horror” flick of the variety that gets tossed out by the film-making industry every five minutes or so, you’d see my blood pressure and heart rate spike each time, but five minutes after the end I’d likely not even be able to identify that film it was I’d watched.
On the other hand, The Thing (the John Carpenter version) keeps me feeling unsettled each time I think of it (and has the occasional starring role in my rare nightmares). During the movie, though? Maybe a blood pressure increase, and a slight increase in heart rate. But nothing compared to the jump-scare fodder.
OK, so they’re consumed directly, not ground up or smashed into paste or something?