Can gaming become an addiction? According to the World Health Organization, the answer is yes. That question has been debated and studied for years now but, until very recently, the WHO has never officially weighed in on the matter. That ended with the release of the most recent edition of the International Classification of Diseases, which pegs "gaming disorder" as a legitimate diagnosis. But don't worry. Playing a metric ton of Fortnite isn't enough to get you labeled with the condition.