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Our bodies are the most complex machines ever created, but they all basically work the same. Learn how the human anatomy works to keep us all going with the videos in this section.

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Life or Death Situations

Watch this video about how the brain reacts to life of death situations on HowStuffWorks. Researchers are studying a mechanism in the brain that determines if a stressful situation is controllable or not. Learn the human brain processes life or death situations in this video from ScienCentral.
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