The left ear is more responsive to words of love and emotion whispered into it than the right.
40
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
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Couples' personalities converge over time to make partners more and more similar.
235
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