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The brain is one of the most essential parts of the human body. The brain is what sends impulses to the other parts of your body, and this allows them to function. The nerve impulses have been measured at about 170 miles per hour. This means that these impulses travel as fast as a speeding car. This is why you are able to react to things that are in your environment quickly. The nerve impulses have to travel from your brain and back again. Since these impulses travel at such a high speed, this is why you are able to feel pain as soon as you hurt yourself.
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