Wait, are you surprised? It's been proven times over social media has a very negative impact on your mental health. I experienced it myself and only been on the way out since the spring.
Can you provide any citations for this because I'm not aware of any proof of this?
There are certainly studies which report a correlation between mental health and the time spent on social media but none that I'm aware of which prove that social media negatively pacts mental health vs poor mental health causes people to spend more time on social media.