Screens are everywhere these days! We’re taking a look at why smartphones are so addictive, and how our devices affect us.

Our co-hosts took on a bold challenge for this episode: they went a week without phones or tablets. We’ll hear how their experiment went, then Sanden will fill us in on the brain chemical that trains us to love our screens. We'll also learn why the predictability of messages and alerts on smartphones makes them extra hard to put down.

Plus, we’ll get a few tips from Catherine Price, the author of How to Break Up With Your Phone.

And! A new moment of Um: why are bruises blue, and how do we get them?