Two in five people in the world marry their first love.
270
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
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
14
A man's beard grows fastest when he anticipates sex.
239