Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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Men fall in love faster than women do.
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Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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When dragonflies mate, their tails form a love heart.
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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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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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