Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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A man's beard grows fastest when he anticipates sex.
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In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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Two in five people in the world marry their first love.
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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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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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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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