Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Wearing red increases attraction.
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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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The left ear is more responsive to words of love and emotion whispered into it than the right.
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Men fall in love faster than women do.
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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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You burn 26 calories in a one minute kiss.
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