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 medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
The single biggest predictor of love is proximity.
30
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
The left ear is more responsive to words of love and emotion whispered into it than the right.
40