Wearing red increases attraction.
30
The average person will go on a date at least 100 times before they finally marry.
33
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
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Historically, sweat has been an active ingredient in perfume and love potions.
309
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
278
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25