Men who kiss their wives in the morning live five years longer than those who don't.
1k
The average person will go on a date at least 100 times before they finally marry.
33
Couples' personalities converge over time to make partners more and more similar.
235
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
Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
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
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130