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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Green tea is able to stop the scent of garlic or onion from causing bad breath.
An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
There are 20 feet of blood vessels in each square inch of human skin.