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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
If you could remove all of your skin, it would weigh up to 5 pounds.
Blood is approximately twice as thick as water because of the cells and other components found in it.
Asthma cases in Americans are about 75% higher today than they were in 1980.
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