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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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The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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Women are 50% to 75% more likely than men to experience an adverse drug reaction.

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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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