If you’re lucky, it’s possible you’ve never thought much about sitting. It’s just something your body does, like breathing or sleeping. But in the last decade or so, sitting has stepped into the spotlight, as a kind of villain. In today’s episode, Slate’s Dan Kois tells us about his radical experiment to go without sitting for an entire month. Then to understand why sitting is under attack we look back at an earlier posture panic around slouching, and explore the role of hostile architecture. This episode was written by Max Freedman and Willa Paskin and produced by Max. We produce Decoder Ring with Katie Shepherd and Evan Chung. Derek John is Executive Producer. Merritt Jacob is Senior Technical Director. You heard “Sitting” by TJ Mack, aka Brian Jordan Alvarez, as remixed by Josh Mac. We’d like to thank Stephen Nessen and Rob Robinson. For some of the background on hostile architecture, we are indebted to the late Mike Davis’s book, City of Quartz, and in particular Chapter 4: “Fortress L.A.” Check out Dan Kois’ New York Magazine article about his exploits, “Sitting Is Bad for You. So I Stopped. For a Whole Month.”  If you haven’t please yet, subscribe and rate our feed in Apple Podcasts or wherever you get your podcasts. And even better, tell your friends. If you’re a fan of the show, we’d love for you to sign up for Slate Plus. Slate Plus members get to listen to Decoder Ring and every other Slate podcast without any ads. You also get unlimited access to Slate’s website. Member support is crucial to our work. So please go to Slate.com/decoderplus to join Slate Plus today. Learn more about your ad choices. Visit megaphone.fm/adchoices