It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
One in five long-term love relationships began with one or both partners being involved with others.
177
Women rate men more attractive if other women are looking and smiling at him.
17
Yawns are more contagious among people with closer relationships.
163
A man is more likely to get a woman's phone number if he is accompanied by a dog.
20