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
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
40% of people who are rejected in romantic love slip into clinical depression.
72
One in five long-term love relationships began with one or both partners being involved with others.
177
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
Men who kiss their wives in the morning live five years longer than those who don't.
1k
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12