When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
When dragonflies mate, their tails form a love heart.
22
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
Parents receive 1 out of every 5 Valentines.
20
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Historically, sweat has been an active ingredient in perfume and love potions.
309
You burn 26 calories in a one minute kiss.
605