According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
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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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Wearing red increases attraction.
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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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Sea otters hold hands while sleeping so they don’t drift away from each other.
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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 Korea, there's a man named Lee Jin-gyu who fell in love and married his life-sized Japanese body pillow (called a "dakimakura").
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Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
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