The World Health Organization says compulsively playing video games now qualifies as a mental health condition, specifically an addictive behaviour disorder.
The statement on Monday confirmed the fears of some parents but led critics to warn that it may risk stigmatizing too many young video players.
In its latest revision to an international disease classification manual, the UN health agency said that classifying "gaming disorder" as a separate addiction will help governments, families and health-care workers be more vigilant and prepared to identify the risks.
WHO and other experts were quick to note that cases of the condition are still very rare, with no more than three per cent of all gamers believed to be affected.
In a definition for gaming disorder released earlier in the year, WHO said those affected would show a pattern of behaviour characterized by "impaired control over gaming, increasing priority given to gaming over other activities to the extent that gaming takes precedence over other interests and daily activities, and continuation or escalation of gaming despite the occurrence of negative consequences."
The agency also said the behaviour would have to significantly impair normal functioning to meet the criteria for gaming disorder, and would normally have been going on for at least 12 months.
'Distraught' parents
Dr. Shekhar Saxena, director of WHO's department for mental health and substance abuse, said the agency accepted the proposal that gaming disorder should be listed as a new problem based on scientific evidence, in addition to "the need and the demand for treatment in many parts of the world."
Mental Health and Human Rights
Dr. Joan Harvey, a spokesperson for the British Psychological Society, warned the new designation might cause unnecessary concern among parents.
"People need to understand this doesn't mean every child who spends hours in their room playing games is an addict, otherwise medics are going to be flooded with requests for help," she said.
Others welcomed WHO's new classification, saying it was critical to identify people hooked on video games quickly because they are usually teenagers or young adults who don't seek help themselves.
"We come across parents who are distraught, not only because they're seeing their child drop out of school, but because they're seeing an entire family structure fall apart," said Dr. Henrietta Bowden-Jones, a spokesperson for behavioural addictions at Britain's Royal College of Psychiatrists. She was not connected to WHO's decision.
Bowden-Jones said gaming addictions were usually best treated with psychological therapies but that some medicines might also work.
The American Psychiatric Association has not yet deemed gaming disorder to be a new mental health problem. In a 2013 statement, the association said it's "a condition warranting more clinical research and experience before it might be considered for inclusion" in its own diagnostic manual.
The group noted that much of the scientific literature about compulsive gamers is based on evidence from young men in Asia.
"The studies suggest that when these individuals are engrossed in internet games, certain pathways in their brains are triggered in the same direct and intense way that a drug addict's brain is affected by a particular substance," the association said in that statement.
"The gaming prompts a neurological response that influences feelings of pleasure and reward, and the result, in the extreme, is manifested as addictive behaviour."
'Non-financial kind of gambling'
Dr. Mark Griffiths, who has been researching the concept of video gaming disorder for 30 years, said the new classification would help legitimize the problem and strengthen treatment strategies.
"Video gaming is like a non-financial kind of gambling from a psychological point of view," said Griffiths, a distinguished professor of behavioural addiction at Nottingham Trent University. "Gamblers use money as a way of keeping score whereas gamers use points."
He guessed that the percentage of video game players with a compulsive problem was likely to be extremely small — much less than one per cent — and that many such people would likely have other underlying problems, like depression, bipolar disorder or autism.
WHO's Saxena, however, estimated that two to three per cent of gamers might be affected.
Griffiths said playing video games, for the vast majority of people, is more about entertainment and novelty, citing the overwhelming popularity of games like Pokemon Go.
"You have these short, obsessive bursts and yes, people are playing a lot, but it's not an addiction," he said.
Saxena said parents and friends of video game enthusiasts should still be mindful of a potentially harmful problem.
"Be on the lookout," he said, noting that concerns should be raised if the gaming habit appears to be taking over.
"If [video games] are interfering with the expected functions of the person — whether it is studies, whether it's socialization, whether it's work — then you need to be cautious and perhaps seek help," he said.
