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Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

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Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

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Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Aging is more than biology. In some cultures, Jennifer Lopez, 43, would be considered elderly. Lopez ... Aging is more than biology. In some cultures, Jennifer Lopez, 43, would be considered elderly. Lopez ...
An overhead camshaft engine equipped with variable valve timing on both the intake and exhaust ... An overhead camshaft engine equipped with variable valve timing on both the intake and exhaust ...
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Video: Types of Shock (Part 2 of 2)

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