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There are 60,000 miles of blood vessels in every adult human.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.