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
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Wearing red increases attraction.
30
The left ear is more responsive to words of love and emotion whispered into it than the right.
44
One in five long-term love relationships began with one or both partners being involved with others.
177
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130