When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Men who kiss their wives in the morning live five years longer than those who don't.
1k
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
Historically, sweat has been an active ingredient in perfume and love potions.
309
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
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81