Kissing an infection-free partner is good for your teeth!
141
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Historically, sweat has been an active ingredient in perfume and love potions.
309
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
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
Wearing red increases attraction.
30
8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
212