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?
Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Approximately 25% of all reported medication errors result from some kind of name confusion.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
