Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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When dragonflies mate, their tails form a love heart.
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'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
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Kissing an infection-free partner is good for your teeth!
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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A man's beard grows fastest when he anticipates sex.
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Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
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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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