Just One Cup A Day Causes Caffeine Addiction, Researchers Say

(Photo by Tim Boyle/Getty Images)

EVANSTON, IL – OCTOBER 1: A cup of coffee is seen on the counter of the Cafe Express coffee house October 1, 2004 in Evanston, Illinois. In a recent study, researchers say just one cup of coffee a day causes caffeine addiction. (Photo by Tim Boyle/Getty Images)


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