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
Couples' personalities converge over time to make partners more and more similar.
235
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
737
According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
14
Parents receive 1 out of every 5 Valentines.
20