When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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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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You burn 26 calories in a one minute kiss.
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Men fall in love faster than women do.
32
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.
14
Gary Kremen, founder of match.com, lost his girlfriend to a man she met on match.com.
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