Couples' personalities converge over time to make partners more and more similar.
235
Two in five people in the world marry their first love.
270
You burn 26 calories in a one minute kiss.
605
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).
99
When dragonflies mate, their tails form a love heart.
22
Historically, sweat has been an active ingredient in perfume and love potions.
309
