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Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

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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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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

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Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

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Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Eye Color Is a Sex-Linked Trait in Drosophila (Part 2) Eye Color Is a Sex-Linked Trait in Drosophila (Part 2)
A simulated-color map of the surface of Venus as measured by synthetic aperture radar on the Magella A simulated-color map of the surface of Venus as measured by synthetic aperture radar on the Magella
True-color view of Mars seen through NASA's Hubble Space Telescope in 1999 True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
Jaundice seen in the eyes and the skin of a patient with hepatitis A. Jaundice seen in the eyes and the skin of a patient with hepatitis A.
Example of an approximately 37,500 probespotted oligo microarray. Example of an approximately 37,500 probespotted oligo microarray.
Urine Color Can Signal Dehydration Urine Color Can Signal Dehydration
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