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
In 2012, a Chinese man named Xiao Fan had a dress made out of 9,999 red roses for his girlfriend and then proposed - 9 in China means forever
16
Raj from the Big Bang Theory is married to Miss India.
11
Historically, sweat has been an active ingredient in perfume and love potions.
309
Women rate men more attractive if other women are looking and smiling at him.
17
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12