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
Wearing red increases attraction.
30
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
40% of people who are rejected in romantic love slip into clinical depression.
72
Historically, sweat has been an active ingredient in perfume and love potions.
309
Men fall in love faster than women do.
32