Men who kiss their wives in the morning live five years longer than those who don't.
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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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Couples' personalities converge over time to make partners more and more similar.
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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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In 1999, a fisherman found a love letter in a bottle from a soldier in WWI. He returned said letter to the now deceased widows 86 year old daughter.
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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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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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