Kissing an infection-free partner is good for your teeth!
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In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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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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The left ear is more responsive to words of love and emotion whispered into it than the right.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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