What does it mean to grow up online? Veronica Belmont investigates how the www is changing us: our personalities, our bodies, and our brains. A college student shares his experience at rehab for Internet addiction. Bestselling author Nir Eyal breaks down what apps borrow from gambling technology. Writer Heather Schwedel talks about taking a cue from Kanye and breaking up with Twitter. Blogger Joshua Cousins talks about the Internet as a lifeline, in the wake of recent natural disasters. And we challenge a group of brave volunteers with a no-smartphone challenge. IRL is an original podcast from Mozilla. For more on the series go to irlpodcast.org.