The single biggest predictor of love is proximity.
30
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Couples' personalities converge over time to make partners more and more similar.
235
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212