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There are 60,000 miles of blood vessels in every adult human.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.