'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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Historically, sweat has been an active ingredient in perfume and love potions.
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A man's beard grows fastest when he anticipates sex.
239
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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If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
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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.
687
Speed dating was invented by a Rabbi in 1999.
45
The single biggest predictor of love is proximity.
30