The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
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
When dragonflies mate, their tails form a love heart.
22
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
27
Historically, sweat has been an active ingredient in perfume and love potions.
309