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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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.