British Netflix series "Adolescence" has sparked discussion about the internet, smartphones and teens' mental health. Does the online world really harm teenagers’ health? Researchers have clear advice ...

StayFree is an Android app that helps you limit screen time by blocking distracting applications. With detailed reports, custom usage limits, and app-blocking features, it allows you to set ...

Android's Bedtime mode helps you get a good night's sleep by preventing distractions. It puts your phone in Do Not Disturb so ...

Trump Weakens U.S. Cyberdefenses at a Moment of Rising Danger The firing of the head of the N.S.A. was only the latest move to erode fortifications against cyberattacks, especially those targeting ...