The “cheerleader effect”, the theory that girls look more attractive in groups, is scientifically proven.
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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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In one day an average person will take about 18,000 steps.
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More boys than girls are born during the day; more girls are born at night.
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Roughly a quarter of the world's people live in China.
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Males sweat 40% more than females.
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Babies that are breastfed are more likely to be slimmer as adults than those that are not breastfed.
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