Scientists have found the new scariest movie of all time

An annual study monitoring the heart rates of viewers claims to have found the new scariest movie of all time: independent horror flick 'Host.'

Conducted by consumer comparison website BroadbandChoices.co.uk, the Science of Scare Project works to categorically find the scariest movies in existence based on what gets viewers' hearts pumping.

The project, which first debuted in 2020, had 250 people from a range of ages outfitted with heart rate monitors to watch 40 scary movies in "screaming rooms" while under medical and researcher supervision.

According to the study, the participants watched more than 120 hours of "best" horror films, as determined by critics' lists and Reddit forums, over the course of several weeks.

Dan Clifford, who funded the study, measured the viewers' average resting heart rate of 64 beats per minute (BPM) against their average increased heart rate during different films and calculated the difference to come up with the winner.