Men fall in love faster than women do.
32
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
You burn 26 calories in a one minute kiss.
605
Couples' personalities converge over time to make partners more and more similar.
235
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104