|
|
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 first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
There are more bacteria in your mouth than there are people in the world.
For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.