Couples' personalities converge over time to make partners more and more similar.
235
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Men who kiss their wives in the morning live five years longer than those who don't.
1k
The single biggest predictor of love is proximity.
30
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
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!)
278
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Wearing red increases attraction.
30