You will experience the billionth second of your life when you are 31 years old.
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There are actually seven different types of twins: Identical, Fraternal, Mirror-Image, Polar Body (Half Identical), Mixed Chromosome, Superfecundation, and Superfetation.
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There's an isolated tribe in Zimbabwe where the people have only two toes, dubbed the 'ostrich people'.
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Most of the world's people must walk at least 3 hours to fetch water!
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In a year, the average person walks four miles to make his or her bed.
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40% of people who are rejected in romantic love slip into clinical depression.
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90% of people sit at their computer desk slouching, supporting their head with their left hand.
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