40% of people who are rejected in romantic love slip into clinical depression.
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Couples' personalities converge over time to make partners more and more similar.
235
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
The average person will go on a date at least 100 times before they finally marry.
33
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
27
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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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4