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Addicted to coffee? Blame your genes!

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Tuesday, September 18, 2012

It appears that coffee addiction is rooted in our genes. That is, how much caffeine you crave -- be it more or less -- can be found in two specific genes labeled CYP1A2 and AHR.

The former is linked to the process by which the body metabolizes caffeine, while the latter regulates the activity of the CYP1A2 gene.

"It's really an incredible story," study co-author Dr. Neil Caporaso, branch chief of genetic epidemiology at the National Cancer Institute, explained to HealthDay News. "People don't really suspect it, but genetics plays a big role in a lot of behaviors, such as smoking and alcohol consumption. And now it turns out that it has a part in how much caffeine we drink."

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