Wearing red increases attraction.
30
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
4
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
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
255
One in five long-term love relationships began with one or both partners being involved with others.
177