Wearing red increases attraction.
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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.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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When dragonflies mate, their tails form a love heart.
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The single biggest predictor of love is proximity.
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Kissing an infection-free partner is good for your teeth!
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Cuddling (or other ‘love’ acts) helps to heal physical wounds faster due to the release of Oxytocin which is proven to reduce swelling.
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