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There are 20 feet of blood vessels in each square inch of human skin.
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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.