There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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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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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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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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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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A man's beard grows fastest when he anticipates sex.
239
When dragonflies mate, their tails form a love heart.
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Two in five people in the world marry their first love.
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