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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

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The horizontal fraction bar was introduced by the Arabs.

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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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