Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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By weight, Bone is five times stronger than steel.
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On average, someone in the US suffers a stroke every 40 seconds; someone dies every 3 minutes from stroke.
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If you're one in a million, there are about 7,234 people just like you.
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Nearly half of the entire world's adult population has never drunk alcohol.
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On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
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40% of people who are rejected in romantic love slip into clinical depression.
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