Whether or not you crave coffee may be related to your genes. Researchers have found that a variation of a gene may determine why you need your daily coffee fix. “Those with a gene variant called PDSS2 drank one cup less a day on average than those without the variation, the investigators found… The findings suggest that PDSS2 reduces cells’ ability to break down caffeine. That means it stays in the body longer. The upshot: People with the gene variant don’t need as much coffee to get the same caffeine hit as those without it, the researchers said.” More research needs to be done to confirm these new findings and establish the biological cause and effect. 

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