The behavior you described, where your friend plays video games for at least six hours each day and becomes upset when interrupted for family activities, could be indicative of an impulse-control disorder. This type of disorder includes behaviors where a person has difficulty controlling their impulses, resulting in significant time spent on activities like gaming, potentially at the expense of other responsibilities and relationships.
It's important to note that a definitive diagnosis should only be made by a qualified mental health professional, as many factors can influence behavior.
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