It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
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About 3000 years ago, most Egyptians died by the time they were 30!
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35% of the people using personal ads for dating are already married!
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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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The average American/Canadian drinks about 600 sodas a year!
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Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
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A hard working adult sweats up to 4 gallons per day.
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A chance of a woman having twins is increased after the age of 35. About 1 in 27 women will give birth to twins after this age. After 50 the chances of having twins is 1 in 9.
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