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Did you know?
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
Did you know?
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Did you know?
More than 4.4billion prescriptions were dispensed within the United States in 2016.
Did you know?
Medication errors are more common among seriously ill patients than with those with minor conditions.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.