The Pulse

By WHYYScience Health & Fitness

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The Pulse episodes

May 14What It Takes to Survive a Disaster
When disaster strikes and the chips are down, who makes it out alive? On this episode, we explore what it takes to survive a crisis. We hear the incredible story of a 17-year-old girl, who after surviving a plane crash, faced a harrowing journey though the Amazon to safety, why some people experience hallucinations when facing death, and how we’re wired to behave in emergencies.
On Christmas morning in 1971, 17-year-old Juliane Koepcke woke up deep in the jungle, injured, in shock, and utterly alone. She was the sole survivor of a plane crash that had dumped her in the Peruvian Amazon — and now she would have to find her way to safety all by herself. Writer Ellen Cochrane documented Koepcke’s incredible, 11-day journey back to civilization in her new book, “Follow the Water: The Unbelievable True Story of a Teenager's Survival in the Amazon.”
We talk with journalist and lifelong adventurer John Geiger about the “Third Man Factor,” a phenomenon in which people in extreme, often life-threatening situations find themselves being helped and guided by a mysterious presence. Geiger’s book is “The Third Man Factor: Surviving the Impossible.”
Journalist Amanda Ripley has spent decades covering disasters, ranging from plane crashes to natural disasters. After interviewing hundreds of survivors and experts, she breaks down the three stages of how we respond to disasters, what they say about how we're wired, and the strategies that help people survive. Her book is “The Unthinkable: Who Survives When Disaster Strikes — and Why?”
50 min
May 07The Complexity of Motherhood
How do you sum up the experience of motherhood, and all of the changes it brings, both big and small? It’s a transformation that affects everything — hormones, body image, relationships, feelings, money, career — even the answers to larger, existential questions like, “Who am I in this world, and what is my role?”
On this episode, we explore the impact of motherhood. We talk with a psychologist about “matrescence” — a term used to describe the multi-faceted transformation ushered in by motherhood — and why it comes as a surprise to so many mothers. We find out how motherhood rewires the brain, and how those changes affect the way we think and behave. And we hear about a new play that challenges ideas about motherhood and women’s health.
After interviewing women about their experiences of motherhood, Aurélie Athan came across a term that seemed to describe all of the changes: Matrescence. Athan is a reproductive psychologist and a professor at Teachers College at Columbia University in New York City.
When health-and-science journalist Chelsea Conaboy first became a mother, she was surprised to find that the maternal instinct she’d heard about for years wasn’t kicking in. That led Conaboy to investigate some of our long-held beliefs about motherhood — and how they influence our ways of thinking and behaving. Her book is called “Mother Brain: How Neuroscience Is Rewriting the Story of Parenthood.”
We talk with writer and actor Andrea Peterson about her new play, (plan c) — a dark comedy that explores the gray areas of motherhood, from medical issues to fears about maintaining independence to relationship troubles. The world premiere of (plan c) with Pygmalion Productions is running now at the Rose Wagner Black Box Theater in Salt Lake City, Utah.
When Katie Pratt was 3 years old, she was diagnosed with a Chiari malformation, a rare brain condition in which the cerebellum bulges through an opening in the skull into the spinal canal. Katie’s mom, Wendy, had a hunch about what the solution would be — but it wasn’t until doctors opened up Katie’s skull that they discovered she was right. Katie interviews her mom about the experience, and her incredible flash of mother’s intuition.
50 min
April 30Healing with Psychedelics: Veterans, PTSD, and the Science of Mind-Altering Drugs
For decades, psychedelics like LSD, psilocybin, and MDMA were regarded as dangerous drugs of abuse — but that’s started changing as research increasingly reveals their ability to help treat serious mental health issues. On this episode, we listen back to past conversations about the science behind these drugs’ therapeutic potential, along with powerful stories of healing.
When Marcus Capone retired from the Navy SEALS in 2013 after more than a decade of service, he found himself at loose ends, and battling a deep depression. He cycled through antidepressants and other prescription medications, but nothing worked — until his wife suggested a radical alternative: psychedelic-assisted therapy. Capone describes his experience with ibogaine, how it changed him, and why he thinks it worked when nothing else did. Capone is the co-founder and chairman of VETS: Veterans Exploring Treatment Solutions, and is featured in the documentary “In Waves and War” now on Netflix.
Psychiatrist and researcher Rachel Yehuda explains the science behind psychedelic-assisted therapy, and what she’s learned about its potential to treat PTSD in veterans. She leads the PTSD clinical research program at the James J. Peters VA Medical Center in New York City.
MDMA — otherwise known as ecstasy or molly — is best known as a party drug, but in recent years, scientists have begun investigating it as a treatment for PTSD. We talk with science journalist Rachel Nuwer about the history of MDMA, the science behind its therapeutic potential, and how it helped change one woman’s life. Nuwer’s book is called “I Feel Love: MDMA and the Quest for Connection in a Fractured World.”
Cluster headaches can be debilitating — but a little over a decade ago, a group of sufferers, who call themselves “Clusterbusters,” began investigating the potential of psilocybin, otherwise known as magic mushrooms, to treat their intractable pain. We talk with sociologist Joanna Kempner about her research into the group and their mission, documented in her book “Psychedelic Outlaws: The Movement Revolutionizing Modern Medicine.”
50 min
April 23 40 Years After Chernobyl: What Caused the Disaster — and How It Changed Nuclear Energy
Forty years ago, news was only beginning to emerge that an accident had occurred — one that could put millions of people at risk. A reactor at Chernobyl Nuclear Power Plant, then part of the Soviet Union, had exploded, releasing a plume of radioactive gases and particles into the atmosphere and spreading some of the most hazardous radionuclides known to humanity.
We look back at what caused this devastating nuclear accident, and explore its legacy with Adam Higginbotham, author of “Midnight in Chernobyl: The Untold Story of the World's Greatest Nuclear Disaster.” He describes the perfect storm of Soviet secrecy, design flaws, and a series of bad decisions and mistakes that led to the accident, and how it shaped the future of nuclear energy. We’ll find out how a special fungus discovered in the reactor could help protect astronauts from cosmic radiation. And we’ll also hear why and how nuclear energy is making a comeback in the U.S. — including at Three Mile Island, the site of another nuclear accident.
50 min
April 16 So Many Cravings, So Few Rewards: Understanding How Dopamine Works
Science writer Michaeleen Doucleff was sitting on a beautiful beach with her daughter, but she couldn’t relax. She kept reaching for her phone, checking it over and over. She was frustrated but couldn’t stop. Why was she doing this? In her new book, “Dopamine Kids: A Science-Based Plan to Rewire Your Child's Brain and Take Back Your Family in the Age of Screens and Ultraprocessed Foods,” Doucleff explores how devices can hijack our brain’s reward system to keep us coming back for more, even after the pleasure is gone.
50 min
April 09What Greenland Can Teach Us About The Earth’s Past and Future
Politicians are eyeing Greenland as an important strategic location, perfectly situated between Europe and North America. President Donald Trump has said he remains highly interested in acquiring or controlling Greenland as a national security and economic asset. But for a lot of researchers, Greenland is a beautiful and fragile place that holds important clues to the Earth’s past and future. So what are they learning about the large, icy island?
On this episode, we’ll explore some of the research happening in Greenland. We’ll hear about archeologists digging up Viking graves to find out why a settlement disappeared sometime in the 15th century, and talk to an adventurous climate scientist who tracks and follows meltwater that’s flowing from Greenland’s ice sheet into the sea. Also, what are the riches buried under the ice that everybody is interested in? We’ll find out how mining for Greenland’s rare earth metals could affect this ecosystem.
We talk with writer and photographer Neil Shea about his travels to Greenland and the intriguing historical mystery he found there — the Viking settlement that thrived and then vanished 500 years later. Shea explains how and why Erik the Red first pioneered the settlement, the global shifts that put them into decline, and lingering clues as to how and why they disappeared. Shea’s book about his Arctic adventures is “Frostlines: A Journey Through Entangled Lives and Landscapes in a Warming Arctic.”
President Trump's intense interest in Greenland has raised the question — what is it about Greenland that makes it so valuable? One answer, according to journalist Vince Beiser, is its rare earth metals. We talk with Beiser about what makes these metals so valuable, the challenges involved with mining them, and his predictions for what will happen next. Beiser's book is “Power Metal: The Race for the Resources That Will Shape the Future.”
Greenland isn’t just valuable strategically and economically — it’s also a key hub for research on climate change. We talk with Rutgers University geography professor Åsa Rennermalm about why Greenland — and, in particular, its massive ice sheet — is so important to this research, her experiences roughing it in the tundra, and what the recent political discourse could mean for the future of her research.
50 min
April 02Inside the Boom of Urgent Care: How It’s Changing American Medicine
The number of urgent care centers in the U.S. has doubled over the past decade, and it isn’t hard to see why — they fill a void in the market. Urgent care offers quick and convenient access to medical care when patients can’t get an appointment to see their primary care doctor, but their issue doesn’t seem to warrant an ER visit. But the rapid rise of urgent care has come with some growing pains — questions over the quality of care, and how they’re affecting doctor-patient relationships. On this encore episode, we explore the rise of urgent care. We hear about what draws providers to urgent care, and how they feel about the work; the role of private equity funding; and why some specialty care providers are borrowing from this model.
Comedian Aaron Weber talks about his popular bit on urgent care — and what kind of response he got from audience members who work in the industry.
Urgent care may occupy an important niche in the health care ecosystem, but let’s be honest — it isn’t the sexiest job. So what makes physicians and other providers decide to work in urgent care? Pulse reporter Liz Tung talked with some of them to find out.
We usually think of urgent care centers as handling minor issues like cuts, scrapes, and colds — but recently, some centers have been springing up that cater to specialized needs. Pulse producer Nichole Currie explores the emergence of urgent care centers for cancer patients.
Mayo Clinic neurologist Joseph Servin explains what urgent cares reveal about our fragmented health care system, and why it can be a bad thing when they become neurology patients’ first stop.
48 min
April 01 Why We Need to Talk About Poop
Have you ever looked in the toilet bowl and wondered, ‘Is that normal?’ Well, you’re not alone — and according to neurogastroenterologist Trisha Pasricha, it’s time to talk about poop.
Pasricha says understanding what’s normal about your bowel movements isn’t just a silly or squeamish conversation, but one that can be lifesaving. Digestive issues affect millions of Americans, yet many of them are scared to discuss them, even with their doctors. Meanwhile, the rate of irritable bowel syndrome or IBS has doubled since the COVID-19 pandemic, and the number of young people dying from colon cancer is rapidly increasing.
On this episode, we talk with Pasricha about her new book, “You’ve Been Pooping All Wrong: How to Make Your Bowel Movements a Joy.” She answers our embarrassing yet universal questions — from why no one poops normally on vacation to how childhood trauma can haunt your gut today. She also digs into what researchers are learning about the gut-brain relationship and how it shapes digestion.
45 min
March 26The Problem with Being Perfect: How Unrealistic Standards Hurt Our Minds and Bodies
We often think of perfectionism as a virtue; a kind of shorthand for high standards, a solid work ethic, and attention to detail.
But in reality, perfectionism can be a paralyzing force — like sand wedged in the gears of our minds. It slows us down, makes us question our choices, and traps us in an endless cycle of tweaking and re-tweaking, unable to move on to the next task. It can even have consequences for our health, as we push ourselves beyond our limits, in pursuit of impossible standards. And it’s on the rise, especially among teens and young adults.
On this episode, we explore what causes perfectionism, how we can escape its grip, and why letting go of unrealistic expectations doesn’t have to mean abandoning excellence. We hear from recovering perfectionists about what finally forced them to let go of their impossible standards, and how their lives have changed since. We talk with a longtime perfectionism researcher about what’s at the root of perfectionism, and some of its more dire consequences. And we learn about a new movement that’s pushing high school kids to invest less in their academic achievements — and more in how they matter to others.
For most of her life, Gitanjali Trevorrow-Seymour was a perfectionist — and as an adult, her exacting standards seemed to have paid off, in the form of a successful career, beautiful home, and loving family. But a few years ago, she reached a turning point that prompted her to question her pursuit of perfection — and the toll it was taking on her life and health. We talk with Trevorrow-Seymour about what finally caused her to change, and what it’s like living on the other side of perfectionism.
It’s something we all hear as kids: “Practice makes perfect.” But for budding cellist Joshua Roman, it was more than just a saying — it was the only way to become the best. His relentless work ethic paid off when, at the tender age of 22, Roman became the youngest lead cellist in the Seattle Symphony Orchestra’s history. But everything changed for Roman several years ago, when he contracted a debilitating case of long COVID, and found himself struggling to function. Pulse producer Nichole Currie talks with Roman about how his newfound limitations have changed his life and forced him to face his perfectionism.
Researcher Gordon Flett breaks down the dark side of perfectionism — from burnout to health effects — explaining where it comes from, why it’s on the rise in young people, and how to deal with it. Flett is a professor emeritus of psychology at York University in Toronto, and the author of several books on perfectionism.
For a lot of high school kids, college admissions are a major driver of stress — not to mention depression, anxiety, and low self-esteem. Pulse reporter Alan Yu talks with perfectionism researchers about the dangers of America’s “achievement culture,” along with journalist Jennifer Wallace about a potential solution — the Mattering Movement.
50 min
March 19Unearthing the Hidden Stories of Women Scientists
From Kevlar to windshield wipers, pulsars to dark matter and radioactivity, women are responsible for countless scientific discoveries and inventions that changed the world — and yet, many of them remain overlooked, forgotten, or ignored.
On this episode, we shine a light on some of these women and hear about the detective work required to unearth their lives and legacies; chasing clues, rifling through dusty boxes, and hitting plenty of dead ends.
We rediscover the life and work of Katharine Burr Blodgett, a physicist and chemist whose seminal inventions are still in use today. We hear about what it was like being one of the few female engineers working at NASA in the 1970s, and we talk with quantum physicist Shohini Ghose about some of the brilliant women who helped us decode the mysteries of the universe.

SHOW NOTES:
Journalist Katie Hafner was on a mission — to uncover the details of physicist and chemist Katharine Burr Blodgett's work and life. But so much of Blodgett's correspondence and laboratory notes were missing — it felt like doing a puzzle with so many missing pieces. We listen to an excerpt from “Layers of Brilliance” a documentary podcast from Lost Women of Science about the life of Katharine Burr Blodgett.
From the time she was a kid, Candy Vallado had a singular ambition: to work in aerospace. But when she graduated college in 1968, she quickly discovered that no one wanted to hire a “woman engineer.” We talk with Vallado about what led her to joining her first NASA mission, some of the sexism she faced, and how she feels, looking back, about the progress of women in STEM.
We talk with quantum physicist Shohini Ghose about some of the brilliant, forgotten women who helped us decode the mysteries of the universe. Ghose’s book is “Her Space, Her Time: How Trailblazing Women Scientists Decoded the Hidden Universe."
50 min

About The Pulse

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Go on an adventure into unexpected corners of the health and science world each week with award-winning host Maiken Scott. The Pulse takes you behind the doors of operating rooms, into the lab with…