Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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Parents receive 1 out of every 5 Valentines.
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The left ear is more responsive to words of love and emotion whispered into it than the right.
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In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
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