Erotomania is a type of delusion in which the person believes another person is in love with him/her.
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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.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
104
In Korea, if you do not receive any gift on Valentine's day then all the singles go to Korean restaurants and eat black noodles to celebrate (or mourn) their single status.
27
The average person will go on a date at least 100 times before they finally marry.
33
When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
130
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26