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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
People about to have surgery must tell their health care providers about all supplements they take.
Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.