Wearing red increases attraction.
30
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
Historically, sweat has been an active ingredient in perfume and love potions.
309
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
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12