Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
A man's beard grows fastest when he anticipates sex.
239
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
69
In Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
27
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44