'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
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Historically, sweat has been an active ingredient in perfume and love potions.
309
A poll has found that computer 'nerds' make the best lovers, with 82 percent of IT geeks claiming they put their partner's pleasure above their own.
464
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
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
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
27