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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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Thyroid conditions may make getting pregnant impossible.

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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

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Approximately 25% of all reported medication errors result from some kind of name confusion.

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