Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Kissing an infection-free partner is good for your teeth!
141
'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
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
Wearing red increases attraction.
30