Raj from the Big Bang Theory is married to Miss India.
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
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
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14