There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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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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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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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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The single biggest predictor of love is proximity.
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Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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Two in five people in the world marry their first love.
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