Social media harms teens’ mental health, mounting evidence shows. What now? (sciencenews.org)

-There is considerable scientific evidence of a causal relationship between social media use and mental health concerns. In particular anxiety and depression 

-Questions have been raised as to whether social media is the cause of mental health concerns or if youth who have pre-existing mental health concerns tend to use social media more frequently.

-The article indicated that new studies must look at the spectrum of social media users not just those who heavily engage in social media use or those who don't at all.