The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
Couples' personalities converge over time to make partners more and more similar.
235
Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
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
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29