'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
Wearing red increases attraction.
30
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
You burn 26 calories in a one minute kiss.
605
According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
14
Two in five people in the world marry their first love.
270
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
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234