40% of people who are rejected in romantic love slip into clinical depression.
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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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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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A man's beard grows fastest when he anticipates sex.
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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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For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Sea otters hold hands while sleeping so they don’t drift away from each other.
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