When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Couples' personalities converge over time to make partners more and more similar.
235
Raj from the Big Bang Theory is married to Miss India.
11
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10
Two in five people in the world marry their first love.
270
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
A man's beard grows fastest when he anticipates sex.
239