When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
Historically, sweat has been an active ingredient in perfume and love potions.
309
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
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
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165