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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
Illicit drug use costs the United States approximately $181 billion every year.
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.