Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
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
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Wearing red increases attraction.
30