Couples' personalities converge over time to make partners more and more similar.
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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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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).
99
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
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