40% of people who are rejected in romantic love slip into clinical depression.
72
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
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103