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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Most people smile when they are frustrated, according to a study.
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Approximately one-third of the population can't snap their fingers!
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The average person walks the equivalent of twice around the world in a lifetime
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As many as one third Americans flush the toilet while they are still on it.
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Infants spend more time dreaming than adults do.
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Every three seconds, a new baby is born.
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Nearly 10% of American households dress their pets in Halloween costumes.
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