TED Talks Science and Medicine - podcast cover

TED Talks Science and Medicine

Some of the world's greatest scientists, doctors and medical researchers share their discoveries and visions onstage at the TED conference, TEDx events and partner events around the world. You can also download these and many other videos free on TED.com, with an interactive English transcript and subtitles in up to 80 languages. TED is a nonprofit devoted to Ideas Worth Spreading.

Episodes

Meet the scientist couple driving an mRNA vaccine revolution | Uğur Şahin and Özlem Türeci

As COVID-19 spread, BioNTech cofounders Uğur Şahin and Özlem Türeci had one goal: to make a safe, effective vaccine faster than ever before. In this illuminating conversation with head of TED Chris Anderson, the immunologists (and married couple) share the fascinating story of how their decades of mRNA research powered the Pfizer-BioNTech vaccine -- and forecast what this breakthrough science could mean for the future of vaccines and other immunotherapy treatments.

Aug 03, 202125 min

The missing 96 percent of the universe | Claire Malone

We've misplaced the building blocks of the cosmos -- and particle physicists like Claire Malone are on a mission to find them. Despite scientists hitting a "major snag" in uncovering what exactly makes up dark matter and dark energy, she explains how questioning our fundamental understanding of nature itself invites a different, more meaningful perspective universally.

Jul 14, 202113 min

The death of the universe -- and what it means for life | Katie Mack

The universe started with a bang -- but how will it end? With astonishing visuals, cosmologist and TED Fellow Katie Mack takes us to the theoretical end of everything, some trillions of years in the future, in a profound meditation on existence, wonder and the legacy of humanity within the immensity of time and space.

May 24, 20216 min

The search for microscopic aliens | Sarah Rugheimer

Astrophysicist and TED Fellow Sarah Rugheimer searches for aliens -- but not the cartoony green kind. She's looking for extraterrestrial microbes by studying how these single-celled organisms emit gases, which could reveal evidence of them throughout the cosmos. Wondering if we're really alone in the universe, Rugheimer identifies two big hurdles to confirming life on another world and offers insight into what finding it might mean for us.

May 24, 20216 min

How COVID-19 transformed the future of medicine | Daniel Kraft

The pandemic forced the world to work together like never before and, with unprecedented speed, bore a new age of health and medical innovation. Physician-scientist Daniel Kraft explains how breakthroughs and advancements like AI-infused antiviral discoveries and laboratory-level diagnostic tools accessible via smartphones are paving the way for a more democratized, connected and data-driven future of medicine and personalized care.

May 10, 202115 min

How your memory works -- and why forgetting is totally OK | Lisa Genova

Have you ever misplaced something you were just holding? Completely blanked on a famous actor's name? Walked into a room and immediately forgot why? Neuroscientist Lisa Genova digs into two types of memory failures we regularly experience -- and reassures us that forgetting is totally normal. Stay tuned for a conversation with TED science curator David Biello, where Genova describes the difference between common moments of forgetting and possible signs of Alzheimer's, debunks a widespread myth a...

Apr 21, 202122 min

The electrical blueprints that orchestrate life | Michael Levin

DNA isn't the only builder in the biological world -- there's also a mysterious bioelectric layer directing cells to work together to grow organs, systems and bodies, says biologist Michael Levin. Sharing unforgettable and groundbreaking footage of two-headed worms, he introduces us to xenobots -- the world's first living robots, created in his lab by cracking the electrical code of cells -- and discusses what this discovery may mean for the future of medicine, the environment and even life itse...

Mar 31, 202119 min

The hidden history found in your teeth | Carolyn Freiwald

Your teeth carry secrets: centuries of history about your ancestors, from where they lived to what they ate and where they traveled. Bioarchaeologist Carolyn Freiwald traces the story of human migration across the Americas -- from Mayan royalty and Belizean buccaneers to rural Appalachian farmers -- to illustrate what ancient teeth can reveal about you.

Feb 12, 202111 min

The promise of quantum computers | Matt Langione

What if tiny microparticles could help us solve the world's biggest problems in a matter of minutes? That's the promise -- and magic -- of quantum computers, says Matt Langione. Speaking next to an actual IBM quantum computer, he explains how these machines solve complex challenges like developing vaccines and calculating financial risk in an entirely new way that's exponentially faster than the best supercomputers -- and shares why industries should prepare now for this new leap in computing....

Feb 09, 202112 min

A stellar history of modern astronomy | Emily Levesque

Astronomers once gazed upon the night sky and counted every star in the galaxy by hand. The process has evolved since then, but the thirst for celestial knowledge remains the same. Join astrophysicist Emily Levesque for an anecdote-rich jaunt through the technological history of photographing the cosmos and learn about the one constant that makes it all work: human curiosity.

Dec 04, 202015 min

How COVID-19 human challenge trials work -- and why I volunteered | Sophie Rose

In April 2020, epidemiologist-in-training Sophie Rose volunteered to be infected with the virus that causes COVID-19. As a young, healthy adult, she's offering to take part in a human challenge trial, a study where participants are intentionally exposed to SARS-CoV-2 to test vaccines and gather critical data. Explaining how challenge trials could speed up the development of effective vaccines, Rose shares why volunteering was the right decision for her.

Nov 20, 20207 min

Could we treat spinal cord injuries with asparagus? | Andrew Pelling

Take a mind-blowing trip to the lab as TED Senior Fellow Andrew Pelling shares his research on how we could use fruits, vegetables and plants to regenerate damaged human tissues -- and develop a potentially groundbreaking way to repair complex spinal cord injuries with asparagus.

Nov 20, 20207 min

The power of venom -- and how it could one day save your life | Mandë Holford

Venom can kill ... or it can cure. In this fascinating talk, marine chemical biologist Mandë Holford shares her research into animal venom, from killer sea snails to platypuses and slow lorises -- and explores its potential to one day treat human diseases like cancer. The mechanism behind this powerful substance is still mysterious, Holford says, but: "Someday, snail venom might just save your life."

Oct 29, 20209 min

A concrete idea to reduce carbon emissions | Karen Scrivener

Concrete is the second most-used substance on Earth (behind water), and it's responsible for eight percent of the world's carbon footprint. Cement researcher Karen Scrivener shares the research behind a pioneering new kind of cement known as LC3, which could slash carbon emissions from this crucial building material by 40 percent, if adopted at scale.

Oct 10, 20204 min

How animals and plants are evolving in cities | Menno Schilthuizen

In cities, evolution occurs constantly, as countless plants, animals and insects adapt to human-made habitats in spectacular ways. Evolutionary biologist Menno Schilthuizen calls on peculiar beings such as fast food-loving mice and self-cooling snails to illustrate the ever-transforming wonders of urban wildlife -- and explains how you can observe this phenomenon in real-time, thanks to a global network of enthusiastic citizen scientists.

Aug 24, 202012 min

Can light stop the coronavirus? | David Brenner

Far-UVC light is a type of ultraviolet light that kills microbes and viruses and, crucially, seems to be safe to use around humans. Radiation scientist David Brenner describes how we could use this light to stop the spread of SARS-CoV-2, the virus responsible for COVID-19, in hospitals, nursing homes, trains and other public indoor spaces -- paving the way for a potentially game-changing tool in the fight against the coronavirus pandemic. (This virtual conversation, hosted by TED science curator...

Jul 24, 202030 min

The case to infect volunteers with COVID-19 to accelerate vaccine testing | Nir Eyal

Conventional vaccine testing is a slow, years-long process. As thousands of people continue to die each day from COVID-19, bioethicist Nir Eyal proposes a radical idea that could dramatically accelerate the vaccine development timeline: "human challenge trials," in which scientists would deliberately expose volunteers to the virus to more quickly determine a vaccine's efficacy. (This virtual conversation, hosted by head of TED Chris Anderson, was recorded June 15, 2020.)

Jun 25, 202018 min

The new science of personalized vaccines | Ofer Levy

At the intersection of precision medicine and vaccinology lies a revolutionary scientific pursuit: personalized vaccines. Infectious disease specialist Ofer Levy introduces this promising medical approach, in which tailored inoculations will enable effective immunization of the most vulnerable among us, including the young and elderly, and shares how we're now venturing into a new era of sustaining and supporting human life. (This talk contains graphic medical imagery.)

Jun 18, 202012 min

Let's make the world wild again | Kristine McDivitt Tompkins

Earth, humanity and nature are inextricably interconnected. To restore us all back to health, we need to "rewild" the world, says environmental activist Kristine McDivitt Tompkins. Tracing her life from Patagonia CEO to passionate conservationist, she shares how she has helped to establish national parks across millions of acres of land (and sea) in South America -- and discusses the critical role we all have to play to heal the planet. "We have a common destiny," she says. "We can flourish or w...

May 26, 202016 min

An ER doctor on triaging your "crazy busy" life | Darria Long

How do doctors in the emergency room stay calm and focused amidst the chaos? Drawing on years of experience, ER doctor Darria Long shares a straightforward framework to help you take back control and feel less overwhelmed when life starts to get "crazy busy."

May 13, 202012 min

The wonders of the molecular world, animated | Janet Iwasa

Some biological structures are so small that scientists can't see them with even the most powerful microscopes. That's where molecular animator and TED Fellow Janet Iwasa gets creative. Explore vast, unseen molecular worlds as she shares mesmerizing animations that imagine how they might work.

Apr 13, 20206 min

The galactic recipe for a living planet | Karin Öberg

Did you know that one of the most notorious poisons is also a key ingredient for life as we know it? Join space chemist Karin Öberg and learn how she scans the universe in search of this paradoxical chemical using ALMA, the world's largest radio telescope, to detect hotbeds of molecular activity and the formation of life-sustaining planets.

Apr 10, 202014 min

A history of Indigenous languages -- and how to revitalize them | Lindsay Morcom

Indigenous languages across North America are under threat of extinction due to the colonial legacy of cultural erasure, says linguist Lindsay Morcom. Highlighting grassroots strategies developed by the Anishinaabe people of Canada to revive their language and community, Morcom makes a passionate case for enacting policies that could protect Indigenous heritage for generations to come.

Apr 07, 202013 min

How you can help save the monarch butterfly -- and the planet | Mary Ellen Hannibal

Monarch butterflies are dying at an alarming rate around the world -- a looming extinction that could also put human life at risk. But we have just the thing to help save these insects, says author Mary Ellen Hannibal: citizen scientists. Learn how these grassroots volunteers are playing a crucial role in measuring and rescuing the monarch's dwindling population -- and how you could join their ranks to help protect nature. (You'll be in good company: Charles Darwin was a citizen scientist!)...

Apr 01, 202012 min

Indigenous knowledge meets science to take on climate change | Hindou Oumarou Ibrahim

To tackle a problem as large as climate change, we need both science and Indigenous wisdom, says environmental activist Hindou Oumarou Ibrahim. In this engaging talk, she shares how her nomadic community in Chad is working closely with scientists to restore endangered ecosystems -- and offers lessons on how to create more resilient communities.

Mar 27, 202013 min

The weird history of the "sex chromosomes" | Molly Webster

The common thinking on biological sex goes like this: females have two X chromosomes in their cells, while males have one X and one Y. In this myth-busting talk, science writer and podcaster Molly Webster shows why the so-called "sex chromosomes" are more complicated than this simple definition -- and reveals why we should think about them differently.

Mar 23, 202014 min

How we could change the planet's climate future | David Wallace-Wells

The climate crisis is too vast and complicated to solve with a silver bullet, says author David Wallace-Wells. What we need is a shift in how we live. Follow along as he lays out some of the dramatic actions we could take to build a livable, prosperous world in the age of global warming.

Mar 13, 202011 min

The dangers of a noisy ocean -- and how we can quiet it down | Nicola Jones

The ocean is a naturally noisy place full of singing whales, grunting fish, snapping shrimp, cracking ice, wind and rain. But human-made sounds -- from ship engines to oil drilling -- have become an acute threat to marine life, says science journalist Nicola Jones. Watch (and listen) as she discusses the strange things that happen to underwater creatures in the face of ocean noise pollution -- and shares straightforward ways we can dial down the sound to see almost immediate impacts....

Mar 11, 202013 min

How a miniaturized atomic clock could revolutionize space exploration | Jill Seubert

Ask any deep space navigator like Jill Seubert what makes steering a spacecraft difficult, and they'll tell you it's all about the timing; a split-second can decide a mission's success or failure. So what do you do when a spacecraft is bad at telling time? You get it a clock -- an atomic clock, to be precise. Let Seubert whisk you away with the revolutionary potential of a future where you could receive stellar, GPS-like directions -- no matter where you are in the universe.

Mar 05, 202011 min

What a nun can teach a scientist about ecology | Victoria Gill

To save the achoque -- an exotic (and adorable) salamander found in a lake in northern Mexico -- scientists teamed up with an unexpected research partner: a group of nuns called the Sisters of the Immaculate Health. In this delightful talk, science journalist Victoria Gill shares the story of how this unusual collaboration saved the achoque from extinction -- and demonstrates how local and indigenous people could hold the secret to saving our planet's weird, wonderful and most threatened species...

Feb 12, 202014 min