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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.
In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.