There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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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.
39
One in five long-term love relationships began with one or both partners being involved with others.
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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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Two in five people in the world marry their first love.
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When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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