|
|
Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.