The Pulse

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 change. But there's a movement underway to protect sharks — and to change their public image, which suffered after the classic movie Jaws.On this episode, we explore the secret lives of sharks, and what can be done to help these ancient predators survive. We learn about the history of sharks, and what's made them so adaptable; hear about how some fishermen are helping to save them; and find out what the historical record can teach us about the largest, most fearsome shark to ever exist — the megalodon.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

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 cause us to turn down necessary care. And patients aren't the only ones worrying about money — on the provider side, everyone from doctors to hospitals to insurance companies are also weighing the costs and benefits of expensive tests and treatments, along with whether or not patients can pay.On this episode, we explore the complicated relationship between medicine and money, and how it affects patient care. We learn about the history of medical debt and why some patients end up in court over unpaid bills; we find out how financial incentives affect pharmaceutical companies' decisions about what treatments to develop; and we hear about a controversial practice that some are calling medical deportation.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

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 beneath our feet — they're ancient artifacts, historical records, time capsules filled with clues about Earth's past and its future.On this episode, we read into the geologic record — written in stone — to decipher the secrets it holds. We talk with an adventurous researcher, who explains how volcanoes helped shape our planet's evolution; we find out what we can learn from studying rocks; and hear about how rock collecting helped save one woman's life.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Explore the complexities of freedom and free will from neuroscientific, philosophical, and social perspectives. Learn about decision-making in the human brain, personal identity constraints, and the paradox of societal influences on individual autonomy. Discover the liberating power of saying 'yes' to new experiences and embracing opportunities for personal growth.

Exploring Amazon's evolution from a bookstore to a global e-commerce giant, including its impact on various sectors. Unpacking Amazon's aggressive competitive tactics and future growth aspirations. Delving into the challenges of data centers and the logistics of online shopping deliveries with a focus on optimizing supply chain efficiency.

Discover the challenges of face blindness, explore super recognizers' exceptional abilities, and ponder the future of face recognition technology. Dive into controversies surrounding facial recognition, tech biases, and privacy concerns in the tech world.

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 care into their own hands — experimenting with DIY treatments ranging from brain stimulation to homemade wound ointments. We hear about a man who developed a cure for his persistent infection in his garage, find out why so many people are flocking to DIY medicine, and learn how one researcher carefully evaluates his patients' DIY approaches.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

The podcast discusses changing ideas of masculinity with women gaining ground, leaving men feeling lost. It explores challenges men face in defining masculinity, evolving generational perspectives, and redefining traditional gender norms. The impact of fatherhood on men's neurological responses, emotional connections, and evolving roles in childcare is also examined.

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 anniversary with a special live show that turns the spotlight on the science changing our everyday lives. We talk with a pediatrician and engineer whose work has transformed the way children travel – and saved countless lives; host Maiken Scott volunteers as a guinea pig for neurologists studying brain stimulation; and we hear from a biologist whose early-career quest changed the way she thinks about her work.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

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 the natural sciences, and the wonders of the natural world, as inspiration for some of our most celebrated works.On this episode, we explore the hidden architecture of science that often underlies music, literature, and more. We talk with a mathematician who makes the case that math is key to appreciating literature on a whole new level; a pianist who reveals how the natural world inspired some of classical music's most iconic composers; and an artist whose work on water blurs the lines between art, ecology, and activism.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy