A man's beard grows fastest when he anticipates sex.
239
In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
27
Wearing red increases attraction.
30
Kissing an infection-free partner is good for your teeth!
141
The single biggest predictor of love is proximity.
30
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
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