When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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A man's beard grows fastest when he anticipates sex.
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The left ear is more responsive to words of love and emotion whispered into it than the right.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
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.
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Speed dating was invented by a Rabbi in 1999.
45
Historically, sweat has been an active ingredient in perfume and love potions.
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