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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.
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.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.