Have you seen the movie trailer for Krampus? It looks pretty scary and that is NOT exactly the way to create those charming memories of Christmas. I’ve always heard that fear could “curdle your blood”. Guess what? It’s true!

Watching a horror movie can really get your blood pumping, but new data shows it can actually make your blood curdle.

Researchers from the Netherlands tested the physiological effects of horror movies on a group of volunteers, and found that fear inspired by a horror movie increased levels of clotting agents in viewers' blood. Truth!
Researchers say it probably happens because the body is preparing to heal itself in case whatever the person fears becomes a reality. In other words, your fear may mean that if you bleed, your blood will clot faster.
Published in the British Medical Journal, the study notes, "For centuries the term 'bloodcurdling' has been used to describe feeling extreme fear under frightening situations. The term dates back to medieval times and is based on the concept that fear or horror would've 'run the blood cold' or 'curdle' [or congeal the] blood.

Turns out those middle-agers were way ahead of their time! (UPI)

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