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
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Intelligent men tend to be more sexually faithful.
31
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212
A man is more likely to get a woman's phone number if he is accompanied by a dog.
20
Women rate men more attractive if other women are looking and smiling at him.
17
One in five long-term love relationships began with one or both partners being involved with others.
177