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Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

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Video: Structures that affect circulation - heart and MABP

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