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Asthma cases in Americans are about 75% higher today than they were in 1980.
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
The human body produces and destroys 15 million blood cells every second.
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