Historically, sweat has been an active ingredient in perfume and love potions.
309
Two in five people in the world marry their first love.
270
One in five long-term love relationships began with one or both partners being involved with others.
177
In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
16
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Men fall in love faster than women do.
32
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234