Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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One in five long-term love relationships began with one or both partners being involved with others.
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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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Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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Rex the German Shepherd was a rescue dog with a bad temper. He refused to be fed by humans and would attack strangers, but he’s a changed dog after falling in love with Geraldine the goose!
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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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You burn 26 calories in a one minute kiss.
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