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There are approximately 3 million unintended pregnancies in the United States each year.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
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There are 20 feet of blood vessels in each square inch of human skin.
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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.