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 you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
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
Couples' personalities converge over time to make partners more and more similar.
235
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
One in five long-term love relationships began with one or both partners being involved with others.
177
Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
737