As a mom, my news feed is flooded with cautionary tales about all the ways technology will ruin my kids—and all the ways I must protect them. Social-media bans. Screen-time limits. The “Wait Until 8th ...

In her new book, “Smartphone Nation,” social media expert Kaitlyn Regehr helps parents manage their digital media consumption and teach kids healthy tech habits.

It’s not all fun and games. Experts have long warned that spending a lot of time playing video games can increase anxiety, depression, eye strain, the risk of developing obesity and other health woes.