'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
Cuddling (or other ‘love’ acts) helps to heal physical wounds faster due to the release of Oxytocin which is proven to reduce swelling.
22
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
The single biggest predictor of love is proximity.
30
In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
456
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
The average person will go on a date at least 100 times before they finally marry.
33
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130