09/04/2012 02:52 pm ET Updated Sep 03, 2013

Internet Addiction Might Be Genetic, Associated With Nicotine Addiction

Internet addiction may be in our genes -- just like nicotine addiction. In a study of 843 people, researchers found that 132 suffered "problematic" online behavior: "All their thoughts revolve around the Internet during the day, and they feel their well-being is severely impacted if they have to go without it." Members of this group were more likely than their peers to have a genetic variation associated with nicotine addiction.

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