Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
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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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
If you mouth the word "colorful" to someone, it looks like you are saying "I love you".
634
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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Close to 110 million roses (mostly red) will be purchased and delivered around Valentine's Day in the U.S.
88
Historically, sweat has been an active ingredient in perfume and love potions.
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