Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
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Roughly a quarter of the world's people live in China.
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The world's shortest man measures only 21.5 inches.
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Karl Pillemer, a professor, performed a study on thousands of elderly people and what advice they had about life. On happiness, there was a consensus: “the elders viewed happiness as a choice, not the result of how life treats you.”
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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In 2002, Kenyan Maasai tribespeople donated 14 cows to the US to help with the aftermath of 9/11.
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According to the American Society for Microbiology, 90% of women and 75% of men wash their hands after using a public restroom.
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