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The longest a person has survived after a heart transplant is 24 years.

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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

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More than 4.4billion prescriptions were dispensed within the United States in 2016.

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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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