Men who kiss their wives in the morning live five years longer than those who don't.
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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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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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Parents receive 1 out of every 5 Valentines.
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The average person will go on a date at least 100 times before they finally marry.
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In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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