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Each week, Kal Penn takes today’s trends and headlines and asks: Why does history keep repeating itself? From the new space race and plane delays to fad drugs and movie remakes, our guest's answers will make you feel better about everything.

Last week, you heard about brain rot and its neuroscience. So this week, we wanted to tackle how to combat it. Manoush Zomorodi is a journalist and host of TED Radio Hour. Mostly, she's trying to figure out how technology is changing your body, your brain, and your behavior. She and Kal sit down to talk about how movement and boredom can be vital parts of warding off the more negative effects of scrolling and screentime.See omnystudio.com/listener for privacy information.

Brain rot is a slang term for the cognitive decline we're experiencing these days due to screentime, social media, and the like. But is it a real thing? And is technology making us dumber? Kal sits down with neuroscientist David Eaglemann to delve into the relatively new idea of brain rot -- and whether it's so new after all.See omnystudio.com/listener for privacy information.

Despite its massive popularity, the culture of NASCAR has shifted -- from banning the Confederate flag at races to settling an antitrust lawsuit. Kal sits down with legendary NASCAR driver Bubba Wallace, who just celebrated his first "crown jewel" victory. How is the sport evolving? How has it stayed the same? And, what's next?See omnystudio.com/listener for privacy information.

Are there harmful chemicals in our drinking water? Climate change and environmental reporter at New Hampshire Public Radio, Mara Hoplamazian, is on a mission to find out. On their new podcast, SAFE TO DRINK, Mara wades through the depths of what PFAS/PFOA Chemicals have been doing to us. Just how much is in our water, and how can we protect ourselves? And how come this same issue keeps repeating again and again across the country?See omnystudio.com/listener for privacy information.

Need a ride? This week, Kal speaks with co-founder, president, and executive director of the New York Taxi Workers Alliance, Bhairavi Desai, about the ongoing disruption of the taxi industry. Bhairavi has fought alongside more than 21,000 drivers to raise the base income, create a cap on the number of ride-sharing vehicles permitted to drive in New York City, and relieve drivers of hundreds of thousands of dollars of debt. But in a new era of ride-sharing and driverless vehicles, what threats remain to cab drives all over?See omnystudio.com/listener for privacy information.

Short form video is everywhere today. But if you rewind back to 2005, comedy trio The Lonely Island had only just released Saturday Night Live's first digital short: "Lazy Sunday." It went viral, transforming the lives of its members Andy Samberg, Jorma Taccone, and Akiva Schaffer. The Lonely Island would go on to produce hit after hit for SNL, from "I'm On A Boat," to "Dick in a Box." Kal and Jorma sit down to talk about digital shorts, now and then. Plus, hear more about Jorma's new film, Over Your Dead Body.See omnystudio.com/listener for privacy information.

When COVID told us we all needed to be six feet apart, some people became addicted to TikTok and other people picked up a racket. Since 2019, tennis participation in the U.S. has grown by 54 percent. And that's excluding all the avid pickleball lovers who keep stealing their courts. So, why are we just becoming obsessed with a game that Andy Roddick has been obsessed with his whole life? Kal talks to the former number one player in the world about why and how his sport is making a comeback.See omnystudio.com/listener for privacy information.

LA City Council Member Nithya Raman is running for mayor. On this episode, she joins Kal for a candid conversation. She opens up about how she got into politics, LA's homelessness crisis, and being compared to NYC Mayor Zohran Mamdani. What does being a democratic socialist mean to her? And, what does it take to implement real change in her city?See omnystudio.com/listener for privacy information.

Bobak Ferdowsi is more than just the NASA Mohawk guy. He's a Systems Engineer at the NASA Jet Propulsion Laboratory with an incredible aptitude for studying spacecraft failures so we can learn from them. Kal breaks down Bobak's career through the spacecrafts that defined them, from the Mars Curiosity Rover to a brand new satellite. Plus, why our failures aren't always bad and how to keep the worst ones from happening again.See omnystudio.com/listener for privacy information.

Does anyone completely trust the media landscape anymore? Mehdi Hasan, a broadcaster, journalist, and newly minted CEO & Editor-in-Chief of independent media company Zeteo, has a few insights that might shed light on how we've gotten to where we are, and how distrust has shaped his very specific, highly uncompromising style of reporting.See omnystudio.com/listener for privacy information.