In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
The left ear is more responsive to words of love and emotion whispered into it than the right.
44
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
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
40% of people who are rejected in romantic love slip into clinical depression.
72
Historically, sweat has been an active ingredient in perfume and love potions.
309