Internal Facebook docs show time spent by US teenagers was down 16% YoY, young US adults were also spending 5% less time on the social network, and more (Bloomberg)

Bloomberg:
Internal Facebook docs show time spent by US teenagers was down 16% YoY, young US adults were also spending 5% less time on the social network, and more  —  Rising internal concerns about young users was largely invisible to outsiders, forming the basis of a whistle-blower's SEC complaint