"[P]roblematic use appears to affect 12.5% of people."

"Commonly agreed on facets of problematic use include perceived lack of control over the time spent on Facebook; negative feelings about own Facebook usage (e.g., guilt, regret, shame); and negative life impact for: relationships, sleep, & productivity/work." "Under the extended measurement framework, problematic use appears to affect 12.5% of people. Another 11% of people report negative life impact 'very often' but only 'sometimes' lacking control." "Problematic use may cause issues for our users and this should be our primary business reason to address it." "20 percent of participants who suffer from problematic use consider deactivation or deletion due to negative life impact of Facebook very often as opposed to less than 5 percent of those who do not suffer from problematic use:"