Decoder Ring | Jane Fonda’s Workout, Part 1: Jane and Leni (Encore)

Decoder Ring | Jane Fonda’s Workout, Part 1: Jane and Leni (Encore)

Slow Burn · 2025-08-27

In 1982, the Jane Fonda Workout became the best-selling home video of all time. Over decades, it and its 22 follow ups would spawn a fitness empire, sell more than 17 million copies, and transform Fonda into a leg-warmer-clad exercise guru. And 40 years after its initial release, when the COVID pandemic hit, the workout had a moment yet again. People began doing it alone and on Zoom, tweeting about it, writing about it. So when Jane Fonda agreed to talk to us, we set out to do an episode about it—but it did not go as planned.

On Part 1 of a special two-part Decoder Ring, originally released in 2020, we explore the decades-long relationship of Jane Fonda and Leni Cazden, a fraught friendship that birthed the VHS workout that changed the world. It’s a story of creation, fame, forgiveness, trauma, betrayal, survival, politics, and exercise. You’ll hear from Jane Fonda and Leni Cazden, the brain behind the workout, and Shelly McKenzie, author of Getting Physical: The Rise of Fitness Culture in America.

In two weeks we’ll return with Part 2: the nitty gritty story of the bestselling VHS tape of all time.

This episode was written by Willa Paskin. It was edited and produced by Benjamin Frisch. We had research assistance from Cleo Levin. Decoder Ring is produced by Katie Shepherd, Max Freedman, and Evan Chung, our supervising producer. Merritt Jacob is Senior Technical Director.

If you have any cultural mysteries you want us to decode, email us at [email protected], or leave a message on the Decoder RIng hotline at 347-460-7281. We love to hear any and all of your ideas for the show.



Sources for This Episode

Burke, Carol. Camp All-American, Hanoi Jane, and the High-and-Tight, Beacon Press, 2005.

Fonda, Jane. My Life So Far, Random House, 2005.

Hershberger, Mary. Jane Fonda's War: A Political Biography of an Antiwar Icon, The New Press, 2005.

Lembcke, Jerry. Hanoi Jane: War, Sex, and Fantasies of Betrayal, University of Massachusetts Press, 2010.

McKenzie, Shelly. Getting Physical: The Rise of Fitness Culture in America, University Press of Kansas, 2013.

Perlstein, Rick. Nixonland, Scribner, 2009.

Rafferty, James Michael. “Politicising Stardom: Jane Fonda, IPC Films and Hollywood, 1977-1982,” Queen Mary University of London Dissertation, 2010.



Get more of Decoder Ring with Slate Plus! Join for exclusive bonus episodes of Decoder Ring and ad-free listening on all your favorite Slate podcasts. Subscribe from the Decoder Ring show page on Apple Podcasts or Spotify. Or, visit slate.com/decoderplus for access wherever you listen.
Learn more about your ad choices. Visit megaphone.fm/adchoices

Slow Burn

Slow Burn illuminates America’s most consequential moments, making sense of the past to better understand the present. Through archival tape and first-person interviews, the series uncovers the surprising events and little-known characters lurking within the biggest stories of our time.

Want more Slow Burn? Join Slate Plus to unlock full, ad-free access to Slow Burn and your other favorite Slate podcasts. You can subscribe directly from the Slow Burn show page on Apple Podcasts and Spotify. Or, visit slate.com/slowburnplus to get access wherever you listen.

Season 10: The Rise of Fox News
How a cable news channel became a cultural and political force—and how a whole bunch of people rose up to try and stop it.

Season 9: Gays Against Briggs
A nationwide moral panic, a California legislator who rode the anti-gay wave, and the LGBTQ+ people who stepped up and came out to try and stop him.

Season 8: Becoming Justice Thomas
Where Clarence Thomas came from, how he rose to power, and how he’s brought the rest of us along with him, whether we like it or not. Winner of the Podcast of the Year at the 2024 Ambies Awards.

Season 7: Roe v. Wade
The women who fought for legal abortion, the activists who pushed back, and the justices who thought they could solve the issue for good. Winner of Apple Podcasts Show of the Year in 2022.

Season 6: The L.A. Riots
How decades of police brutality, a broken justice system, and a video tape set off six days of unrest in Los Angeles.

Season 5: The Road to the Iraq War
Eighteen months after 9/11, the United States invaded a country that had nothing to do with the attacks. Who’s to blame? And was there any way to stop it?

Season 4: David Duke
America’s most famous white supremacist came within a runoff of controlling Louisiana. How did David Duke rise to power? And what did it take to stop him?

Season 3: Biggie and Tupac
How is it that two of the most famous performers in the world were murdered within a year of each other—and their killings were never solved?

Season 2: The Clinton Impeachment
A reexamination of the scandals that nearly destroyed the 42nd president and forever changed the life of a former White House intern.

Season 1: Watergate
What did it feel like to live through the scandal that brought down President Nixon?

Where can you listen?

Apple Podcasts Logo Spotify Logo Podtail Logo Google Podcasts Logo RSS

Episodes