Stress can give your body a boost - raising adrenaline levels, pumping blood to the muscles, heightening our senses. And those sudden superpowers can be a boon when you’re running from a lion. But repeatedly dipping into that well can make you sick, even kill you. Since it feels like there’s been an extra bit of stress going around lately, we decided to replay this episode, originally aired back in 2005, which takes a long hard look at the body's system for getting out of trouble. And how in our...
Mar 18, 2022•57 min•Transcript available on Metacast Fantasy writer Elsa Sjunneson has been haunted by Helen Keller for nearly her entire life. Like Helen, Elsa is Deafblind, and growing up she was constantly compared to her. But for a million different reasons she hated that, because she felt different from her in a million different ways. Then, a year ago, an online conspiracy theory claiming Helen was a fraud exploded on TikTok, and suddenly Elsa found herself drawing her sword and jumping to Helen’s defense, setting off a chain of events that ...
Mar 11, 2022•1 hr 4 min•Transcript available on Metacast This week, we flip the Disney story of life on its head thanks to a barrel of seawater, a 1970s era computer, and underwater geysers. It’s the chaos of life. Latif, Lulu, and our Senior Producer Matt Kielty were all sitting on their own little stories until they got thrown into the studio, and had their cherished beliefs about the shape of life put on a collision course. From an accidental study of sea creatures, to the ambitions of Stephen J Gould, to an undercooked theory that captured the wor...
Mar 04, 2022•53 min•Transcript available on Metacast We live our lives at human speed, we experience and interact with the world on a human time scale. In this episode, which first aired in its entirety in the winter of 2013, we put ourselves through the paces. We examine a material that exists between two states of matter, take a ride on the death-defying roller coaster that is the stock market, open up our internal clocks of thought, and achieve mastery over the fastest thing in the universe. Support Radiolab by becoming a member of The Lab toda...
Feb 25, 2022•56 min•Transcript available on Metacast This week, we turn to an expert who tromps the wilds of wordlessness. Lulu’s young son. In this essay, originally published for The Paris Review under the title “ The Eleventh Word ,” Lulu explores what is lost with the gaining of language. And how, in a very odd way, a fear of confusion and the unknown may begin with the advent of words. The Radiolab sound team brings this piece to life with original music, and at one point the words melt right out of the air. Support Radiolab by becoming a mem...
Feb 18, 2022•27 min•Transcript available on Metacast It's hard to start a conversation with a stranger—especially when that stranger is, well, different. He doesn't share your customs, celebrate your holidays, watch your TV shows, or even speak your language. Plus he has a blowhole. In this episode, which originally aired in the summer of 2014, we try to make contact with some of the strangest strangers on our little planet: dolphins. Producer Lynn Levy eavesdrops on some human-dolphin conversations, from a studio apartment in the Virgin Islands t...
Feb 11, 2022•47 min•Transcript available on Metacast For much of history, tree canopies were pretty much completely ignored by science. It was as if researchers said collectively, "It's just going to be empty up there, and we've got our hands full studying the trees down here! So why bother?!" But then, around the mid-1980s, a few ecologists around the world got curious and started making their way up into the treetops using any means necessary (ropes, cranes, hot air dirigibles) to document all they could find. It didn't take long for them to rea...
Feb 04, 2022•24 min•Transcript available on Metacast Jad started Radiolab roughly 20 years ago. And now he is stepping aside from hosting and producing the show to replenish, to think, to rock in his chair and be with his kids and wife, and maybe make some music. The news has been all over twitter and there’s a letter from Jad and our hosts Latif and Lulu on the website. But in this episode, Jad talks through his decision to leave and the future of the show with Lulu and Latif. And then, as a parting gift, we play him the very first episode of Rad...
Jan 28, 2022•1 hr 25 min•Transcript available on Metacast Last week, Lulu heard an interview that trapped her in her car. She decided to play it for Latif. The interview – originally from a podcast called The Relentless Picnic , but presented by one of Lulu’s current podcast faves, The 11th – is part of an episode of mini pep talks designed to help us all get through this cold, dark, second-pandemic-winter-in-a-row. But the segment that Lulu brings Latif is about someone trying to get through something arguably much more difficult, something a pep talk...
Jan 21, 2022•23 min•Transcript available on Metacast It would seem that hackers today can do just about anything they want - from turning on the cellphone in your pocket to holding your life's work hostage. Cyber criminals today have more sophisticated tools, have learned to work collaboratively around the world and have found innovative ways to remain deep undercover in the internet's shadows. This episode, we shine a light into those shadows to see the world from the perspectives of both cybercrime victims and perpetrators. First we meet mother-...
Jan 14, 2022•39 min•Transcript available on Metacast What was the worst year to be alive on planet Earth? We make the case for 536 AD, which set off a cascade of catastrophes that is almost too horrible to imagine. A supervolcano. The disappearance of shadows. A failure of bread. Plague rats. Using evidence painstakingly gathered around the world - from Mongolian tree rings to Greenlandic ice cores to Mayan artifacts - we paint a portrait of what scientists and historians think went wrong, and what we think it felt like to be there in real time. (...
Jan 07, 2022•25 min•Transcript available on Metacast This past year was a flop. From questionable blockbuster reboots to supply chain shenanigans to worst of all, omnipresent COVID variants. But, in a last ditch effort to flip the flop, we at Radiolab have dredged up the most mortifying, most cringeworthy, most gravity-defying flops we could find. From flops at a community pool to flops at the White House, from a flop that derails a career to flops that give NBA players a sneaky edge, from flops that’ll send you seeking medical advice to THE flopp...
Dec 31, 2021•1 hr 16 min•Transcript available on Metacast When Alana Casanova-Burgess set out to make a podcast series about Puerto Rico, she struggled with what to call it. Until one word came to mind, a word that captures a certain essence of life in Puerto Rico, but eludes easy translation into English. We talk to Alana about her series, and that particular word, then turn to an old story about treating words as signals of something happening just beneath the surface. Agatha Christie's clever detective novels may reveal more about the inner workings...
Dec 17, 2021•24 min•Transcript available on Metacast Tuck your napkin under your chin. We’re about to serve up a tale of love, loss, and lamb chops - with a side of genetic modification. Several years ago we told a story about Amy Pearl. For as long as she could remember, Amy loved meat in all its glorious cuts and marbled flavors. And then one day, for seemingly no reason, her body wouldn’t tolerate it. No steaks. No brisket. No weenies. It made no sense: why couldn’t she eat something that she had routinely enjoyed for decades? It turned out Amy...
Dec 10, 2021•57 min•Transcript available on Metacast In this hour of Radiolab, stories of cross-species communication. When we gaze into the eyes of a wild animal, or even a beloved pet, can we ever really know what they might be thinking? Is it naive to assume they're experiencing something close to human emotions? Or is it ridiculous to assume that they AREN'T feeling something like that? We get the story of a rescued whale that may have found a way to say thanks, ask whether dogs feel guilt, and wonder if a successful predator may have fallen i...
Nov 26, 2021•59 min•Transcript available on Metacast In tape five, three stories: first, a tale of how the cassette tape supercharged the self-help industry. Second, cassettes filled with history make an epic journey across Africa with a group of Lost Boys. And finally, Simon meets up with fellow Radiolabber David Gebel to dig through an old box of mixtapes and rediscover the unique power of these bygone love letters. Mixtape was reported, produced, scored and sound designed by me, Simon Adler, with music throughout by me. Unending reporting and p...
Nov 19, 2021•48 min•Transcript available on Metacast In 1983, Simon Goodwin had a strange thought. Would it be possible to broadcast computer software over the radio? If so, could listeners record it off the air and onto a cassette tape? This experiment and dozens of others in the early 80s created a series of cassette fueled, analog internets. They copied and moved information like never before, upended power structures and created a poisonous social network that brought down a regime. In tape four of Mixtape, we examine how these early internet ...
Nov 12, 2021•58 min•Transcript available on Metacast As the Vietnam war dragged on, the US military began desperately searching for any vulnerability in their North Vietnamese enemy. In 1964, they found it. It was an old Vietnamese folktale involving a ghost, eternal damnation and fear - a tailor made weaponizable myth. And so, armed with tape recorders and microphones, the military set out to win the war by bringing this ghost story to life. Today, the story of these efforts and their ghosts that still haunt us today. Mixtape is reported, produce...
Nov 05, 2021•41 min•Transcript available on Metacast In 1946 Bing Crosby was the king of media. He was the movie star, the pop star and his radio show was reaching a third of American living rooms each week. But then, it all started to fall apart. His ratings were plummeting and his fans were fleeing. Bing however, was not going down without a fight. Today, the story of how Bing Crosby and some stolen Nazi technology won his audience back, changed media forever and accidentally broke reality along the way. Mixtape is reported, produced, scored and...
Oct 29, 2021•37 min•Transcript available on Metacast Through the 1980s, the vast majority of people in China had never heard western music, save for John Denver, the Carpenters, and a few other artists included on the hand-picked list of songs sanctioned by the Communist Party. But in the late 90s, a mysterious man named Professor Ye made a discovery at a plastic recycling center in Heping.In episode 1 of Mixtape, we talk to Chinese historians, music critics, and the musicians who took the damaged plastic scraps of western music, changed the music...
Oct 22, 2021•51 min•Transcript available on Metacast Ecologist Nick Haddad was sitting in his new office at North Carolina State University when the phone rang. On the other end of the line was... The U.S. Army. The Army folks told him, “Look, there’s this endangered butterfly on our base at Fort Bragg, and it’s the only place in the world that it exists. But it’s about to go extinct. And we need your help to save it.” Nick had never even heard of the butterfly. In fact, he barely knew much about butterflies in general. Nonetheless, he said yes to...
Oct 15, 2021•41 min•Transcript available on Metacast One morning, Oliver Sipple went out for a walk. A couple hours later, to his own surprise, he saved the life of the President of the United States. But in the days that followed, Sipple’s split-second act of heroism turned into a rationale for making his personal life into political opportunity. What happens next makes us wonder what a moment, or a movement, or a whole society can demand of one person. And how much is too much? Through newly unearthed archival tape, we hear Sipple himself grappl...
Oct 01, 2021•1 hr 3 min•Transcript available on Metacast Today we have a story about the sometimes obvious but sometimes sneaky effects of the way that we humans rearrange the elemental stuff around us. Reporter Avir Mitra and science journalist Lydia Denworth bring us a story about how one man’s relentless pursuit of a deep truth about the Earth led to an obsession that really changed the very air we breathe. This episode was reported by Avir Mitra, and produced by Matt Kielty, Becca Bressler, Rachael Cusick, and Maria Paz Gutiérrez. Special thanks t...
Sep 24, 2021•43 min•Transcript available on Metacast Diane Van Deren is one of the best ultra-runners in the world, and it all started with a seizure. In this short, Diane tells us how her disability gave rise to an extraordinary ability.
Sep 17, 2021•20 min•Transcript available on Metacast It has now been 20 years since September 11th, 2001. So we’re bringing you a Peabody Award-winning story from our archives about one sentence, written in the hours after the attacks, that has led to the longest war in U.S. history. We examine how just 60 words of legal language have blurred the line between war and peace. In the hours after the attacks of Sept. 11, 2001, a lawyer sat down in front of a computer and started writing a legal justification for taking action against those responsible...
Sep 10, 2021•1 hr 10 min•Transcript available on Metacast Multiple sclerosis, lupus, rheumatoid arthritis, even psoriasis — these are diseases in which the body begins to attack itself, and they all have one thing in common: they affect women more than men. Most autoimmune disorders do. And not just by a little bit, often by a lot; in some cases, as much as sixteen times more. But why? On today’s episode, we talk to scientists trying to answer that question. We go back 100 million years, to when our placenta first evolved and consider how it might have...
Aug 26, 2021•29 min•Transcript available on Metacast We all think we know the story of pregnancy. Sperm meets egg, followed by nine months of nurturing, nesting, and quiet incubation. But this story isn’t the nursery rhyme we think it is. In a way, it’s a struggle, almost like a tiny war. And right on the front lines of that battle is another major player on the stage of pregnancy that not a single person on the planet would be here without. An entirely new organ: the placenta. In this episode we take you on a journey through the 270-day life of t...
Aug 20, 2021•29 min•Transcript available on Metacast In 2014, India’s Dutee Chand was a rising female track and field star, crushing national records. But then, that summer, something unexpected happened: she failed a gender test. And was banned from the sport. Before she knew it, Dutee was thrown into the middle of a controversy that started long before her, and continues on today: how to separate males and females in sport. First aired in 2018, Dutee and the story of female athletes in sport are back in the spotlight this week, at the Tokyo Olym...
Aug 06, 2021•46 min•Transcript available on Metacast If you’ve ever lost someone, or watched a medical drama in the last 15 years, you’ve probably heard of The Five Stages of Grief. They’re sort of the world’s worst consolation prize for loss. But last year, we began wondering… Where did these stages come from in the first place? Turns out, Elisabeth Kübler-Ross. But the story is much, much more complicated than that. Those stages of grieving? They actually started as stages of dying. After learning that, producer Rachael Cusick tumbled into a yea...
Jul 23, 2021•1 hr 1 min•Transcript available on Metacast A major development in the case of Guantanamo detainee Abdul Latif Nasser. To listen to our series about him, go to theotherlatif.org .
Jul 19, 2021•2 min•Transcript available on Metacast 
