When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44