The typical person spends about 600 hours having sex between the ages of 20 and 70.
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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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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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Couples' personalities converge over time to make partners more and more similar.
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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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Kissing an infection-free partner is good for your teeth!
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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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