Last year's scariest movie, according to a study, was 2012'sSinister.
2021's scariest? 2020'sHost.
The Science of Scare is a study where 250 participants wear heart monitors while watching 40 of the world’s scariest and best horror movies.
The movie that got heart rates going in 2021's study was Host - yes, a horror movie about a seance conducted over Zoom got people's hearts pumping the most, according to science.
The filmInsidiousgot its own honors - it had the most jump scares during the study.