When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Parents receive 1 out of every 5 Valentines.
20
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
Wearing red increases attraction.
30
The single biggest predictor of love is proximity.
30