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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.
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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.