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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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The average office desk has 400 times more bacteria on it than a toilet.

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There are more sensory neurons in the tongue than in any other part of the body.

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Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

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It is difficult to obtain enough calcium without consuming milk or other dairy foods.

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