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?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
Did you know?
Medication errors are three times higher among children and infants than with adults.
Did you know?
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
