Not Just Scary — Scientifically Proven: 10 Horror Films That Raised Heart Rates. Guess Which One Is No. 1?

Heart rates don’t lie — these films truly terrified people.
If you’ve ever claimed a horror film 'didn’t scare you', there’s now a scientific way to test that theory. Forget IMDb scores and Rotten Tomatoes ratings — a team of researchers has tried to settle the question of what’s actually the scariest horror movie using cold, hard data.
In a project charmingly titled the Science of Scare, British analysts at MoneySuperMarket monitored viewers' heart rates and stress levels while they watched dozens of horror films. The idea? To identify which titles produced not just the loudest screams, but the most sustained physiological terror.
The 2023 results are in — and if you’re brave enough to find out which films might truly make your pulse race, here’s the top ten. Fair warning: these aren’t your average Friday night picks. Some are slow burns, some are full-on panic-fuel, and some... well, you might regret watching alone.