Bowden-Jones said gaming addictions were usually best treated with psychological therapies but that some medicines might also work. How many hours do you think is normal to play video games each week?
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".
The World Health Organisation (WHO) published its latest revision of the 11th International Classification of Diseases (ICD) yesterday, containing its first definition of gaming disorder. There is no doubt that there are people who are likely to end up addicted to playing games, although this is more likely a symptom of some other issue. Previous editions had categorised sexual dysfunction and gender incongruence, for example, under mental health conditions.
"Video games across all kinds of genres, devices and platforms are enjoyed safely and sensibly by more than 2 billion people worldwide, with the educational, therapeutic, and recreational value of games being well-founded and widely recognised", the statement reads.
It is not yet clear exactly when treatment for the mental health condition will be available on the NHS.
WHO will be notifying governments that they'll be expected to add gaming disorder to their public health systems.
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Kim said in his congratulatory message to Xi that he "highly appreciated the successive meetings" with the Chinese president. Last year's Ulchi Freedom Guardian went on for 11 days in August and involved about 17,500 USA troops.
The third feature is when the behavior impacts in other areas of someone's life, which can include "disturbed sleep patterns, like diet problems, like a deficiency in the physical activity".
So-called "shooter games" such as "Fortnite" - described on the support website Game Quitters as the "hottest game in the world" - are either played online or on offline consoles.
Screen time isn't recommended at all for kids who are 18 months or younger, but for children who are older than that up to five, it's generally recommended that they have not more than one hour of screen time, she says.