Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
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
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
Couples' personalities converge over time to make partners more and more similar.
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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.
103
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
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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