Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Men fall in love faster than women do.
32
Raj from the Big Bang Theory is married to Miss India.
11
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Men who kiss their wives in the morning live five years longer than those who don't.
1k
Kissing an infection-free partner is good for your teeth!
141