A company called Broadband Choices went and conducted a scientific study to prove which movies are the scariest, based off of monitoring subjects heart rates while watching the movies in the 'Customized Screaming Room'.

The study monitored the viewer's resting heart rate, the average heart rate through the movie, and what their highest heart rate spike was.

The 20 Scariest Movies, According to Science

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LOOK: Here are the pets banned in each state

Because the regulation of exotic animals is left to states, some organizations, including The Humane Society of the United States, advocate for federal, standardized legislation that would ban owning large cats, bears, primates, and large poisonous snakes as pets.

Read on to see which pets are banned in your home state, as well as across the nation.