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Author Question: The International Union for the Conservation of Nature (IUCN) monitors changes in global biodiversit (Read 807 times) |
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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.
The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
The horizontal fraction bar was introduced by the Arabs.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.