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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Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
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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.
234
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.
25
When dragonflies mate, their tails form a love heart.
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It's possible to die from a broken heart; it's called Stress Cardiomyopathy.
165
Sea otters hold hands while sleeping so they don’t drift away from each other.
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