Historically, sweat has been an active ingredient in perfume and love potions.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99
'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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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
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.
25
One in five long-term love relationships began with one or both partners being involved with others.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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