You burn 26 calories in a one minute kiss.
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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
Parents receive 1 out of every 5 Valentines.
20
The single biggest predictor of love is proximity.
30
The average person will go on a date at least 100 times before they finally marry.
33
'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
40% of people who are rejected in romantic love slip into clinical depression.
72
In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
27