All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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The average adult has about 21 square feet of skin.
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
Structure of the enzyme chymotrypsin, a globular protein
Structure of chymotrypsin
Catalysis of peptide bond hydrolysis by chymotrypsin (part 1)
Catalysis of peptide bond hydrolysis by chymotrypsin (part 2)
The structure of chymotrypsin and the serine protease catalytic triad