Is coffee good or bad? 23andMe study finds the answer in your genes

(STUDY FINDS) -- Do you start every morning with a strong cup of coffee, unable to really wake up without that caffeine jolt? Or do you avoid coffee altogether, finding that even just a few sips make you jittery and anxious? Scientists have been trying to figure out whether coffee is truly good or bad for years.

Now, a new study published in Neuropsychopharmacology suggests the answer (and your coffee-drinking habits) may depend on your genes.

An international team of researchers has found evidence that there are specific genes that help determine just how much of a coffee drinker someone is and how it affects the body. To complicate matters, however, these genetic influences seem to interact with environmental and cultural factors in ways that can produce opposite outcomes in different groups. Simply put, whether coffee is good or bad may literally vary from person to person.

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