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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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
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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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Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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Men who kiss their wives in the morning live five years longer than those who don't.
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