229 episodes
- We tend to think that creativity flourishes in the absence of limits, when we have all of the freedom to innovate and dream big. But what if the opposite is true? What if constraints — from strict rules to tight deadlines — actually make us more creative?
On this episode, we explore how limitations force us to think differently, solve problems in unexpected ways, and allow us to create our best work. We talk with science writer David Epstein about his new book “Inside the Box: How Constraints Make Us Better.”
He explains how restrictions led to the invention of everything from impressionism to the iPod, and how to develop rules and limits for your own creative work that could encourage innovation. The Future of Pain Relief: Managing Chronic Pain, Laughing Gas, and Safer Opioids
07/30/2026 | 49 mins.Millions of people in the U.S. have chronic pain that’s unresponsive to medical interventions. But there are new and comprehensive ways of treating pain. We explore how emotions, stress, sleep, and diet impact pain, a new option for easing labor pain, and emerging research that could reduce the addictive properties of opioids.
We often think of pain as a physical ailment — but newer research shows that pain has as much to do with our brains as it does our bodies. We talk with pain researcher and psychologist Rachel Zoffness about how emotions shape — and construct — our experience of pain, and how identifying the unique biopsychosocial factors contributing to pain can ultimately help patients overcome it. Her new book is "Tell Me Where It Hurts: The New Science of Pain and How to Heal."
Giving birth is one of the most painful things many people will experience — which is why a majority of expectant mothers choose epidurals, IV opioids, or both to manage their pain. But recently, another option has been making its way into the delivery room— nitrous oxide, also known as laughing gas. Reporter Andrew Stelzer explains how N02 stacks up against its competitors, and why a growing number hospitals in the U.S. are offering it as an option.
Opioids work well on all kinds of pain — but, as the last few decades have shown, they also pose a severe risk of addiction. We talk with neuroscientist and addiction researcher Anjali Rajadhyaksha about a recent discovery that could make opioids safer.Jet Lag, Cruise Outbreaks, and Vacation Constipation: How to Deal with Travel Health Woes
07/23/2026 | 49 mins.Vacations are a time to experience new things, and restore our minds and bodies — but sometimes the opposite happens. On this episode, when vacations wreck your health — and how to deal. We hear about evidence-based ways of overcoming jet lag, tips for avoiding "vacation constipation,” surviving the cruise from hell, and what's behind snorkeling deaths in Hawaii.
SHOW NOTES:
We hear from listeners about their worst vacation-related health incidents, ranging from chicken pox to head injuries.
Ahead of an international trip, Pulse host Maiken Scott talks with Olivia Walch, a researcher at University of Michigan and CEO of a circadian rhythm startup called Arcascope, about the biological processes behind jet lag, and evidence-based tips on how to prevent the worst of it.
Ever notice that your first couple days on a trip, you become a little … backed up? Pulse producer Nichole Currie talks with neurogastroenterologist Trisha Pasricha about what causes “vacation constipation,” and how to overcome it. Pasricha’s new book is “You’ve Been Pooping All Wrong: How to Make Your Bowel Movements a Joy.” Listen to their full interview.
As avid globetrotters, Gay and Phil Courter always loved going on cruises — until their trip got taken over by an unexpected threat. Pulse reporter Liz Tung recounts the story of how they ended up trapped on a cruise they didn’t want to be on — and how they ultimately escaped. Watch their documentary on the experience, or read Gay’s book.
Of all the adventurous activities on offer while traveling — from volcano trekking to whitewater rafting — there's one that might be a bit more dangerous than you'd expect: snorkeling. We talk with Caitlin Thompson, an investigative reporter for Honolulu Civil Beat, about Hawaii’s perplexing number of snorkeling deaths, and the potential causes.How Reliable Is Forensic Science? The Truth About Criminal Profiling and Investigations
07/16/2026 | 49 mins.Investigators have long relied on science to help solve crimes, from fingerprint and blood splatter analysis to the psychology of criminal minds. But not every investigative technique rests on solid scientific ground. On this episode, how science is used in criminal investigations, and what happens when these methods aren’t as reliable as we might think.
For years in Hollywood, a kind of mythology has been growing around a specific kind of investigator: FBI behavioral analysts, better known as criminal profilers — agents specially trained in psychology to help decode the minds of serial offenders. In TV shows and movies, they’re shown making brilliant, almost miraculous, connections that ultimately help catch the bad guy. But how accurate are these depictions? Pulse reporter Liz Tung explores the history of criminal profiling, how it works, and what’s behind longstanding criticisms of its methods.
In 2004, the FBI was called in to assist on an investigation into a series of terrorist train bombings in Madrid. The agency connected the fingerprints gathered to a lawyer in Oregon, ultimately arresting him. There was just one problem: They’d nabbed the wrong guy. The attorney was ultimately released and received a settlement, but the fallout wasn’t over. Pulse reporter Alan Yu explores how the blunder led to efforts to create standards for evidence collection.
Jens Ludwig, director of the University of Chicago’s Crime Lab, was taking his dog for a walk, when an unleashed dog came charging towards him. Ludwig started screaming at the dog's owner, his neighbor - the conflict was broken up by a campus security guard. The incident left Ludwig shaken — how did he spiral into such sudden, almost uncontrollable, rage? And what did it say about the deadliest manifestation of such rage — American gun violence? We talk with Ludwig about what his exploration turned up, from how our brains switch from rational to enraged, to what causes eruptions of gun violence — and what strategies could help stop it. Ludwig's new book is “Unforgiving Places: The Unexpected Origins of American Gun Violence.”- When twin brothers Trevor and Kyle Ritland were children, their father — a biologist — would tell them stories about a mythical creature that lived high in the misty mountains of Costa Rica: the golden toad. The toad was elusive, he told them — but for a few weeks every spring, hundreds of them would emerge from the shadows to mate, lighting up the dense forest like brilliant spots of fire. Until one day, the golden toad vanished — never to be seen again.
It’s mysteries like these that have drawn scores of researchers out of their labs and into the wild — tugging them to explore, to climb distant mountains, to venture into faraway forests and discover or rediscover a creature, a place, some new clue.
On this encore episode, we hear stories of those adventures. We talk with Trevor and Kyle about their quest to find out what happened to the golden toad — and what they ultimately discovered. We hear the epic tale of writer Kim Frank’s travels to India in search of wild Asian elephants. And we talk with conservation ecologist Ryan Almeida about how the global wildlife trade is affecting certain species and their habitats.
We talk with brothers Kyle and Trevor Ritland — a writer and documentary filmmaker, respectively — about their search for the mythical golden toad, a presumed-extinct species that hasn’t been seen for over three decades, and what they learned in their travels through the cloud forests of Costa Rica. Their book is “The Golden Toad: An Ecological Mystery and the Search for a Lost Species.”
About 10 years ago, writer Kim Frank set out to understand why wild elephants were trampling people in India. But her journey and the human-wildlife conflict was far more complex than she imagined — taking her down dead ends, meeting with an Indian princess, and finally coming face-to-face with the forest giants.
They’re the kind of animals you only expect to see in documentaries — green anacondas; giant alligator snapping turtles; even the deadly black mamba — but around the world, millions of these often-dangerous animals are sold as pets. We talk with conservation ecologist Ryan Almeida about what fuels the wildlife trade, its effects on native habitats, and what happens when these pets escape into new ecosystems.
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About The Pulse
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 some of the world's foremost scientists, and back in time to explore life-changing innovations. The Pulse delivers stories in ways that matter to you, and answers questions you never knew you had.
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