"According to one study from the American Journal of Psychiatry, between 0.3% and 1.0% of Americans might have an internet gaming disorder."

"Gaming has also been associated with sleep deprivation, insomnia and circadian rhythm disorders, depression, aggression, and anxiety, though more studies are needed to establish the validity and the strength of these connections"

https://www.health.harvard.edu/blog/the-health-effects-of-to...