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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.
The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.