Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
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
A man's beard grows fastest when he anticipates sex.
239
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
One in five long-term love relationships began with one or both partners being involved with others.
177