40% of people who are rejected in romantic love slip into clinical depression.
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You burn 26 calories in a one minute kiss.
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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
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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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Two in five people in the world marry their first love.
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Men fall in love faster than women do.
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Men who kiss their wives in the morning live five years longer than those who don't.
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