We know that both of those things can have negative effects when taken to the extreme. Anything people find addicting can be harmful. For instance, television

We know that both of those things can have negative effects when taken to the extreme. Anything people find addicting can be harmful. For instance, television screen time is correlated with increased obesity. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4555288/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4555288/