One in five long-term love relationships began with one or both partners being involved with others.
177
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
A poll has found that computer 'nerds' make the best lovers, with 82 percent of IT geeks claiming they put their partner's pleasure above their own.
464
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
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
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212