The single biggest predictor of love is proximity.
30
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Historically, sweat has been an active ingredient in perfume and love potions.
309
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10
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.
687
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
You burn 26 calories in a one minute kiss.
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