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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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
Men who kiss their wives in the morning live five years longer than those who don't.
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Kissing an infection-free partner is good for your teeth!
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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.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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Men fall in love faster than women do.
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