'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
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
Men fall in love faster than women do.
32
Men who kiss their wives in the morning live five years longer than those who don't.
1k
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Parents receive 1 out of every 5 Valentines.
20
Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
737