'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.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10
Two in five people in the world marry their first love.
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Twenty nine percent of women spend more time shopping for shoes than they do looking for a life long mate.
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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
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26