Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
Men fall in love faster than women do.
32
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
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