We know what fear is and what is feels like. The excited rush that fear brings is what attracts us to horror films, roller coasters, and spooky haunted house -things we know won't really hurt us. But how much do you know about the way fear works in your body? The American Chemical Society knows, and doesn't mind telling us about it in this new video.
But what happens when the normal chemical response that we call fear doesn't happen? It can cause problems in that one doesn't avoid truly dangerous situations. Watch the followup video, about a woman who has no fear response, at Bytesize Science.
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