When dragonflies mate, their tails form a love heart.
22
Historically, sweat has been an active ingredient in perfume and love potions.
309
Kissing an infection-free partner is good for your teeth!
141
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
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12