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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On this encore episode of The Pulse - We're in a major technological revolution where artificial intelligence, gaming, and virtual reality are allowing us to create and enter totally new spaces and have new experiences.But as these worlds grow bigger, more intense, and more consuming, they're also raising questions about what this new future will l…
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The Promise and Future of Psychedelics Research
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Interest in using psychedelics for mental health treatments has taken off in recent years — but the field was just dealt a major blow on August 9, when the Food and Drug Administration rejected a bid by Lykos Therapeutics to approve the first-ever MDMA treatment for PTSD. The agency said it needed more research to show that the drug was safe and ef…
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The Big Chill and the Future of Refrigeration
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We've only been able to harness the cold for our benefit for a little over 100 years, but innovations like refrigeration and air conditioning have completely transformed the way we live and eat. A massive cold chain makes it possible to buy salmon from Alaska, grapes from Chile, and cheese from Italy; to have sushi in Kansas and ice cream in the su…
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Asking for help is hard. It can make us feel vulnerable, like we're sharing too much or admitting weakness. It can also stoke fears about our relationships and sense of self-worth — am I being a burden? Will they resent me later? What if they say no? And yet, the ability to ask for help is an important life skill that not only helps us survive, but…
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Before dinosaurs, before trees — even before Saturn had its rings – there were sharks. The fierce predators have been swimming in our oceans for hundreds of millions of years, standing the test of time as they survived all five of Earth's mass extinction events. Now, though, many of them face unprecedented threats, from overfishing to climate chang…
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Health care is a billion dollar industry in the U.S. — one of the biggest in the country. The business aspect of medicine is an invisible force in the doctor's office that shapes treatment decisions and care. As patients, financial worries can affect whether we go to the doctor in the first place, make us suspicious of expensive procedures, or even…
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Unearthing the Secrets of Volcanoes and Rocks
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It's easy to forget that the earth below us is always changing and shifting — but sometimes, we get a dramatic demonstration of exactly that, like with the recent eruptions of a volcano in Iceland. Volcanoes can devastate and destroy, but they're also an integral part of our planet's history and even evolution. And the same goes for the rocks benea…
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On this rebroadcast of The Pulse: Freedom sounds great as an idea. Who doesn't want to be free to do what they want? But when you take a closer look, freedom becomes more complicated. What does it really mean to be free — and how free can we be? On this encore episode, we'll look at freedom from different perspectives. We'll talk with a neuroscient…
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How Amazon Revolutionized Shopping and Changed the World
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Amazon caught the wave of the early internet at a time when very few people even understood what the internet was. Launched in a garage 30 years ago, the company has grown from its humble beginnings to a global powerhouse that has expanded into all kinds of sectors, everything from cloud computing to health care. Founder Jeff Bezos wanted Amazon to…
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Imagine looking at a crowd of people, and they either all look vaguely familiar, or like complete strangers. It doesn't matter if this is a group of classmates or colleagues, or people you have never met before. That's a daily experience for people who have a condition called face blindness — who can't recognize people based on their faces. Face re…
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DIY culture is all about empowerment — teaching yourself new skills to do things on your own, like retiling your bathroom or fixing a leaky faucet. But what happens when the DIY approach extends to something as complicated and potentially dangerous as medicine? On this episode, we take a look at the growing number of patients who are taking health …
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Competent. Capable. Strong. Stoic. Provider. Protector. Leader. Patriarch. These are the kinds of words that we've long associated with masculinity and manhood — but in recent decades, ideas of what it means to be a man have undergone drastic changes. As women have gained ground in education and careers, politics and culture, the role of men has sh…
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10th Anniversary Show: The Science Changing Our Lives
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When it comes to science, it's often the flashiest stories that grab headlines — the cancer breakthroughs, the tech innovations, the discoveries of new species or distant stars. But there's also plenty of science that, while it may not make a huge splash, is quietly changing the way we live.On this episode, The Pulse celebrates its 10-year annivers…
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On this rebroadcast of The Pulse - We often think of art and science as existing in different — even opposite — spheres. One revolves around creativity and imagination; the other around observable facts and data — and never the twain shall meet. But really, art and science aren't as far apart as we might think. For centuries, artists have drawn on …
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When Being 'Gifted' No Longer Feels Like a Gift
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When psychologist Lewis Terman launched his decades-long study of high-IQ children in 1921, he had a specific goal in mind: to prove that "gifted" people were born leaders, and superior in just about every way. Although his theory didn't pan out, Terman did kick off national interest in identifying and cultivating intellectually gifted children. Ju…
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We hear all the time about the joys of motherhood — the incomparable sense of love, the magic of watching your kids discover the world, the pride and fulfillment of seeing them grow. But motherhood can also be a grind. These days, moms are expected not only to care for their kids, but to grow their careers — all while juggling housework, swimming l…
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Rediscovering America's War on Bad Posture
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In January 1995, the New York Times Magazine published a bombshell story with the headline: "THE GREAT IVY LEAGUE NUDE POSTURE PHOTO SCANDAL." The article revealed that, from the 1940s through the 1960s, elite colleges had taken naked photos of thousands of freshmen, including future luminaries like George Bush, Bob Woodward, Meryl Streep, and Hill…
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When medical mistakes happen, patients and their families often find themselves at a loss trying to figure out exactly what went wrong. Something bad happened. And then, communication drops; there's no real explanation, and no apology. Suddenly, everybody seems on guard. Health care providers can often feel bound by an imposed cone of silence that'…
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Every day, we hear about countless environmental threats — from air pollution and microplastics, to deforestation and global warming. And a lot of us feel overwhelmed by the scale of these problems, and helpless to enact global big-picture solutions. But small, everyday decisions matter too — and they add up. How you do your laundry, how warm or co…
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Over the past few decades, Latinos have become the largest racial or ethnic minority in the United States, making up nearly 20 percent of the country's population. Despite that, many Latinos feel alienated by our medical system, due to cultural and language barriers, and a lack of Latino physicians — and those barriers can have a real impact on the…
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Boredom in the Age of Information Overload
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It sneaks up on us while we're sitting in traffic, or waiting at the doctor's office, or doing our taxes — boredom, that restless feeling of dissatisfaction that arises when we harbor "the desire for desires," as Leo Tolstoy said. At the same time, we're living in an age of never-ending stimulation, all at our fingertips — texting, social media, 24…
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On April 8, a swath of North America will be treated to a rare and spectacular sight — a total solar eclipse; in some places, the first in more than a century, and the last for at least another 20 years. The path of totality, where it's possible to see the moon completely block out the sun, stretches in a narrow ribbon from Mexico, through Texas, a…
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Identity's a complicated thing — a mixture of nurture and nature, ethnicity, gender, culture, conscious decisions, coincidences, and more. In many ways, though, who we think we are boils down to the stories we tell ourselves; stories based on our origins, our families, and how we came to be. But what happens when those stories change? When we disco…
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It's been four years since COVID-19 struck, transforming our modern world in ways we'd never seen before — and we're still processing the aftershocks. The pandemic exposed fault lines lurking beneath the surface of our everyday lives — friendships and bonds that weren't as strong as we thought; political rifts that turned into chasms; shifts in our…
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Know the signs of depression. Recognize symptoms of anxiety. Pay attention to your friend's changing moods. There's been a push to raise mental health awareness for decades, and now, the topic is everywhere. It's leading the charts on social media sites, and everybody from celebrities to politicians to sports superstars are talking about it more op…
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In 1944, a brilliant, young Harvard physics student named Ted Hall was recruited to work on the super-secret mission that had already assembled the country's top scientists: the Manhattan Project. Soon, Hall was on his way to Los Alamos, where he worked on the implosion mechanism for the nuclear bomb. As the project started to succeed, Hall became …
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If you're training to become a physician, your first patient is usually dead. In fact, "first patient" is what med students call the human cadavers that they work on in anatomy class — when they first learn to make careful incisions, and lay eyes on the beautiful intricacies of bone, muscle, blood vessels, and organs that make our bodies work. Huma…
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You can feel it coming on — your face flushes hot, maybe your fists clench, your heartbeat speeds up and blood pressure rises. It's rage — and it can go from zero to red-hot in a matter of seconds. Best-case scenario, it disappears just as fast. Worst-case scenario — it completely takes over. It's normal to feel angry when you or somebody else has …
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It can show up as a spark or a lightning bolt; a glance or a touch; an easy rapport or butterflies in your stomach. Attraction — it's a feeling we know when we experience it, but we're often not sure exactly what fuels it. Is it about looks or personality? Psychology or chemistry? Instant fireworks or long-term compatibility? On this episode, we ex…
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Medical records are an important part of health care. They create a history of past issues, test results, and medications. They paint a picture of somebody's general health. Patients now have more access than ever before to their records, and these changes have come with some growing pains — like receiving test results straight from the lab, before…
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Inside Facebook: A Conversation with Jeff Horwitz
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After covering the 2016 U.S. presidential election, reporter Jeff Horwitz knew that "something really weird was going on," that social media sites, especially Facebook, had played a role in shaping the election. But how — exactly? In his new book, "Broken Code: Inside Facebook and the Fight to Expose Its Harmful Secrets," Horwitz details his chase …
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Twenty years ago, a group of college sophomores created a website that would end up changing the world — fundamentally altering how we connect with other people, how much we know about each other, and how we curate our existence. That website was Facebook. In the years since, Facebook quickly grew from a quirky site for college students to a global…
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When Healing Happens But We Don't Know Why
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More than a third of Americans use complementary and alternative medicine, ranging from acupuncture to herbalism, Ayurveda to homeopathy. But despite its growing popularity, complementary and alternative medicine remains, for the most part, outside the Western medical mainstream — regarded by some as fringe, and by others as straight-up quackery. D…
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Humans crave certainty — in science and politics, in our lives and our leaders, in our decisions and our futures. We find comfort in knowing the facts, and we fear the murky unknown. In the age of information, we've grown increasingly unnerved by uncertainty and do everything we can to mitigate that anxiety. We do research online, play out scenario…
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We're in a major technological revolution where artificial intelligence, gaming, and virtual reality allow us to create and enter totally new spaces and have new experiences there.In these virtual worlds, we can reinvent ourselves, connect with people around the world, or take on new challenges and adventures. But as these worlds grow bigger, more …
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Why We Love and Hate Exercising — And How to Do It Either Way
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We all know that exercise is good for us — for both our bodies and our minds — but motivating yourself to hit the gym, take a run, or even go for a walk sometimes feels like the hardest thing in the world. There are constant rebuttals that arise in our minds: We're too busy. We're too tired. We need a break — we'll start next week. At the same time…
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It's the goosebumps you get at the crescendo of your favorite song; the stupefying wonder that comes with witnessing a birth or a death; the astonishing mystery we feel when gazing at the vast night sky. This is awe — a complex, often overwhelming emotion that can elicit everything from pleasure and connectedness to a crawling sense of uncertainty.…
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We think of life and death as clear cut — you're alive or you're not; your heart's beating or it isn't; your brain functions or it doesn't. But when you look a bit deeper, both on a biological level, and in terms of people's experiences, the border where life ends and death begins starts to look less firm, leading to questions about what comes next…
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Lots of things can get in the way of taking care of your health, catching medical issues early on, and getting treatment. Navigating insurance woes, trouble scheduling appointments, big medical bills — but also broader issues like lack of access, distrust in the medical system, and language barriers can stand in the way of patient care. On this epi…
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Uncovering the Inner Workings of the Oceans
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What comes to mind when you think of the ocean? Maybe a day at the beach — swimming in the waves, snorkeling through coral reefs, fishing, surfing, and sunsets that kiss the blue horizon. But Earth's oceans are more than all of that; they're our planet's defining feature, its largest ecosystem, the original source of all life, and, according to phy…
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How Gene Therapy is Offering Hope — Once Again
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For decades, the idea that you could attack genetic illnesses right at the root — that you could modify people's genes to treat or cure disease — sounded like science fiction. But in recent years, several new gene therapy treatments have been FDA approved, and many others are showing promise in clinical trials. On this episode, we take a look at wh…
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What we make for dinner, grab as a snack, or have for breakfast changes all the time — and there are some major forces at play: consumer tastes and marketing, but also climate change, global supply chains, nutrition science, health concerns, and social media influencers. On this episode, we'll look at what we eat and why. We'll find out how lima be…
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Salty, Crunchy, and Addictive: A Physician's Fight Against Ultra-Processed Foods
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Sugary cereals for breakfast, a protein bar as a snack, a microwave lasagna for lunch, and a frozen pizza for dinner sounds like a teenager's dream diet, but these are the types of foods physician Chris van Tulleken ate for four weeks. During this time, he got 80 percent of his daily calories from ultra-processed foods, to see how it would impact h…
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In March of 2022, the war in Ukraine was weighing heavily on Fabian Falch, a Norwegian tech entrepreneur. The Russian government had started to censor news stories and social media posts about the war, and Falch wondered how Russian citizens would be able to access information, let alone voice criticism. Then he had an idea: to send emails to Russi…
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Why Rejection Hurts So Much — And How to Cope
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Rejection, or even the thought of it, can strike fear into our hearts, and leave a bad taste in our mouths. It often leads to a mix of sadness, shame, anxiety, and anger — along with nagging questions. What's wrong with me? Why did this person not like me? Why didn't I win this award? Why didn't I get the job? But it doesn't have to be that way, an…
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For most of the big moments in life, we have rituals — proposals, weddings, births, graduations, and anniversaries. We know how to talk about them, how to celebrate them, how to honor them. But there's one moment we all face that lots of people don't know how to deal with: dying. In fact, a majority of Americans avoid end-of-life planning, even tho…
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Flying saucers, little green men, and the X-Files — for years, that's what most people associated with unidentified flying objects, or UFOs. They were the stuff of sci-fi and supermarket tabloids, conspiracy theories and punchlines.But ever since a bombshell article in The New York Times several years back documented confirmed sightings by navy pil…
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Shame and Blame: How Stigma Impacts Health
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Dealing with a serious or chronic health condition is hard enough — but what happens when that condition comes with moral judgment? That's the case for millions of people around the world. From obesity to lung cancer, sexually transmitted diseases to mental illness, stigmatized conditions are shrouded in shame and blame that can not only hinder tre…
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Most of us have been there — feeling our jeans get tighter, watching the numbers on the scale creep up, declaring that this time we're going to lose the weight and keep it off. For a lot of people, though, it seems like no matter what they do — how many diets they try, calories they count, or hours they spend at the gym — losing weight isn't just h…
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In 1978, NASA recruited six candidates out of thousands of applicants for a special, groundbreaking mission: to become the first American women in space. Over the next few years, the six women would endure sexism, grueling training, and unending scrutiny from the media. In her new book, "The Six: The Untold Story of America's First Women Astronauts…
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