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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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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.