Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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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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For Valentine's Day 2014, an unnamed man sabotaged a special screening of "Beijing Love Story" at a Shanghai cinema by booking every other seat, subsequently preventing couples from sitting together.
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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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Two in five people in the world marry their first love.
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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.
25
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
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