The left ear is more responsive to words of love and emotion whispered into it than the right.
44
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
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
Couples' personalities converge over time to make partners more and more similar.
235
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
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
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212