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
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Two in five people in the world marry their first love.
270
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103