In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Couples' personalities converge over time to make partners more and more similar.
235
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
The average person will go on a date at least 100 times before they finally marry.
33
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
The average person in their lifetime will spend an estimated 20,160 minutes kissing!
212
Men who kiss their wives in the morning live five years longer than those who don't.
1k