Social media platforms provide potential opportunities for individuals to connect to support or treatment they need. For instance, social media posts that convey messages of despair or a pattern of increasing hopelessness over a period of time could spur outreach from peers, who in turn can help connect a friend or teammate to commanders and professionals. http://www.dodlive.mil/index.php/2017/01/social-media-offers-tools-to-improve-mental-health-reduce-suicide/
But what they're most worried about is social media causing depression to develop, or exacerbating a person's mental state, worsening it every time they log back in. According to the Anxiety and Depression Association of America, depression isn't characterized by fleeting feelings of anxiety or sadness. http://www.forbes.com/sites/amitchowdhry/2016/04/30/study-links-heavy-facebook-and-social-media-usage-to-depression/#7c5bca4a7e4b
A recent study found that people who use anywhere from seven to 10 social-media platforms are three times more likely to be depressed or anxious, compared to those using no more than two http://nypost.com/2016/12/22/your-social-media-addiction-is-giving-you-depression/
Do social groups really increase the risk of depression?