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The brain is the central processing unit of our body. It receives information from our various sense organs and processes it in a way that results in our perception of the external world . It also controls (almost) all of the involuntary happenings of our bodies (the exception being the heart, although it does send some signals there.) It is the center our our nervous system. It is where YOU as a consciousness exist. The brain is a lot of things.

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7y ago

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