When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Raj from the Big Bang Theory is married to Miss India.
11
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
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
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234