Forwarding you to www.nytimes.com

I Used Apples New Controls to Limit a Teenagers iPhone Time (and It Worked!) - The New York Times

Even as people have embraced the smartphone as one of the most powerful tech products, they are keeping a wary eye on the addictiveness of turning on the device to check for social media updates, read websites and play games. Some studies have tied extended screen time to distraction in classrooms, sleep deprivation and depression.