Could Getting Scared Be Good for You?

Pittsburgh scientists believe "our brain is taking a break" when scared.
2:02 | 10/21/15

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Transcript for Could Getting Scared Be Good for You?
All right, we're back now with the science of fear. Could getting scared be good for you? To find out our nick watt braved a chilling visit with a couple of researchers including the author of the new book called "Scream." Aaagh! Reporter: Why, oh, why, do we do this to ourselves? The answer might lurk right here, let's rewind. Let's get this over with. Nice to see you. Hi. I'm in a makeshift lab in the basement of the scarehouse, Halloween attraction with two university of Pittsburgh scientists who think getting scared -- Hi. Reporter: -- Might actually be good for us. I'm a Guinea pig in your experiment. Absolutely or you will be once you sign this consent form. Reporter: Then a series of prescare house stress tests including holding happens with one of the scientists while listening to ugly noises. They've been wiring up a few volunteers like me and going in. No, no, no. No, no, no. Bloody hell. I jumped so hard I pulled my finger monitor off. I'm not sure it survived or is going to take many good Readings. This place only opens 24 days a year and the run-up to Halloween has amazing sets and 100 actors and margee Kerr, one of the designers of this terror fest who wrote a book aptly named "Scream." When we're scared our thinking brain is taking a break. All of the worry and the concern, it gets pushed to the side because our body wants to prioritize things that are going to help us survive. Reporter: All right, my post-scare house stress analysis. I didn't flinch at all with the noises. I feel more chilled because I've just been scared half to death. This really might be good for us and that is why we do it. Hi. Happy Halloween. For "Good morning America," ABC news, Pittsburgh, Pennsylvania. I tell you what, I am like

This transcript has been automatically generated and may not be 100% accurate.

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