It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
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As a rule, 66 percent of people keep their eyes closed while kissing. The rest take pleasure in watching the emotions run the gamut on the faces of their partners.
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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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Historically, sweat has been an active ingredient in perfume and love potions.
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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.
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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
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Kissing an infection-free partner is good for your teeth!
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