Two in five people in the world marry their first love.
270
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
A man's beard grows fastest when he anticipates sex.
239
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
The single biggest predictor of love is proximity.
30
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88