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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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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Medication errors are three times higher among children and infants than with adults.
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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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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.