'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
Parents receive 1 out of every 5 Valentines.
20
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
278
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
The typical person spends about 600 hours having sex between the ages of 20 and 70.
234
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99