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Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.
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.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
There are approximately 3 million unintended pregnancies in the United States each year.