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Vaccines prevent between 2.5 and 4 million deaths every year.
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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.