One in five long-term love relationships began with one or both partners being involved with others.
177
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
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
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