A man's beard grows fastest when he anticipates sex.
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Historically, sweat has been an active ingredient in perfume and love potions.
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
Sea otters hold hands while sleeping so they don’t drift away from each other.
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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
38
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
'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