The Pulse

Think about the last time you were really happy — where were you? What were you doing? Who were you with? And, most importantly, how can you recreate that feeling? Happiness can feel like lightning in a bottle — beautiful in the moment, but hard to find and harder yet to sustain. So what is it that makes for a happy life? And how do we engineer our lives for greater contentment, fulfillment, and j...

On this episode, we explore the world of color — from how we perceive it, to our efforts to describe and differentiate its many shades. We talk with a lexicographer about efforts to standardize synthetic colors, and how we describe them, and investigate how we know that the colors we see are the same as the ones everyone else sees. The Pulse host Maiken Scott adds some pops of color to her all-bla...

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 morni...

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 ab...

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 retire...

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 d...

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...

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 w...

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 —...

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...

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 cons...

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 t...

Over 60 million Americans — or one in four adults — currently serve as family caregivers for partners, parents, or other loved ones with illness or disability. But despite how common this experience is, it can often feel extremely isolating for the caregiver. In between daily tasks like wound care, medications, and bathing, or navigating health care and insurance — many caregivers find themselves...

The signs are all there — the perfectly packed gym bag is collecting dust in your closet, the kitchen pantry has quietly been refilled with junk food, and your early morning alarms are losing their battle with the snooze button. The goals you set at the beginning of the year seem more and more unattainable. It may feel like you don’t have enough determination — enough resolve — but productivity ex...

When Alexander Graham Bell made the first-ever phone call on March 10, 1876, he never could have dreamed how the telephone would evolve — not to mention the many ways it would end up changing the way we live, work, and communicate. This week, on the 150th anniversary of that first call, we take a look back at the history of the phone, and how it transformed America. We hear about the dramatic race...

Do animals feel love, anger, or empathy? Researchers have long dismissed such ideas as anthropomorphism, arguing that attributing human emotions to animals was unscientific. But as we learn more about animal sentience, that’s starting to change — and, in the process, we’re learning more than ever about the complex inner lives of animals, including why we may be more alike than we once thought. On...

When someone wrongs us, getting revenge can feel like the only right move — the only way for us to balance the scales, to set the world right again. But the consequences can be disastrous, especially when payback becomes an all-consuming obsession. On this encore episode, we talk with lawyer-turned-researcher James Kimmel about his book, “The Science of Revenge: Understanding the World’s Deadliest...

Artificial Intelligence is already guiding surgeons in operating rooms; it’s used to read image scans or take notes during your doctor’s visit. And the pace of AI integration is only getting faster. So what will health care look like in the next 10 to 20 years? Will we consult with an AI-powered doctor before we see our primary care physician or a specialist? Will it give more patients access to c...

For those deep in the dating trenches, love and attraction can feel like uncrackable riddles. How do I make myself attractive to others? How do you know if someone’s into you? What should I look for in a partner — and how do I know if I’ve found “the one”? On this episode, we train a scientific lens on the mysteries of love. We talk with psychologist Paul Eastwick about the latest research on attr...

When it comes to serious health issues like obesity, heart disease, and cancer, Black Americans have higher rates and worse outcomes than most other groups in the U.S. It’s a problem that’s gained growing attention over the past few decades, as public health experts have worked to untangle the causes of these disparities, and to find ways of mitigating their effects. Now those efforts face serious...

At the best of times, alcohol makes us feel great — relaxed and gregarious, warm and fuzzy, happy and confident. But at the worst of times, it can morph into a serious problem, damaging our relationships, our health, and our lives as a whole. As we close out Dry January, a popular movement to abstain from drinking for a month, we explore our relationship with alcohol. Why we consume it, how it aff...

On January 28, 1986, a frigid cold day with an icy blue sky, the Space Shuttle Challenger exploded just 73 seconds after launching from Cape Canaveral, Florida. The accident killed all seven crew members aboard and was the first fatal in-flight spacecraft disaster in NASA's history. For many, the explosion came as an absolute shock. Millions of people were watching live, including school children...

Space exploration relies heavily on the interest of the public — the voters, and taxpayers, who are ultimately footing the bill. But that support and excitement can be fickle. When space missions go well, and deliver new insights, the payoff is cheering crowds and increased support. But when they don’t, the result can be reduced funding, canceled missions — and even deaths. That means, with each m...

If you go by pop culture depictions, menopause seems like no big deal — a few hot flashes, some comical bouts of hormone-fueled rage, and the “big change,” as it was once called, is over. But for many of the 2 million American women who enter menopause each year, the symptoms can be a lot more serious and long-lasting, ranging from vertigo and joint pain to brain fog and heart problems. On this ep...

Capsule wardrobes have become a popular way to streamline and organize your closet — basically, paring it down to a few staple pieces that you can combine in multiple ways, and freshen up with seasonal accessories. Registered Dietitian Jenn Salib Huber says this is how women should think about nutrition during perimenopause and menopause. Rather than obsessing over calorie counts and macronutrient...