TED Health

From cosmetics to nutrition, collagen is seemingly everywhere — but we don't often discuss its ethically questionable sources, says chemical engineer Fei Luo. She delves into the groundbreaking technology that uses genetically modified yeast to brew animal-free collagen, a process that could pave the way for a functional, tasty and harm-free future for this crucial protein.

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In 1968, the American Heart Association made an announcement that would influence people’s diets for decades: they recommended that people avoid eating more than three eggs a week. Their reasoning was that the cholesterol packed into egg yolks could increase cardiovascular disease risk. So, what exactly is cholesterol? And is it actually bad for you? Hei Man Chan digs into this complex molecule. [Directed by Igor Ćorić, Artrake Stu...

For years, Jean Béliveau walked from country to country, with the goal of circumnavigating the globe on foot. While few people have the time or desire to walk such extreme lengths, research shows that adding even a modest amount of walking to your daily routine can dramatically improve your health. So, what exactly happens to your body when you increase your step count? Shannon Odell investigates. [Directed by Avi Ofer, narrated by...

Andy Laats had the textbook fairytale family setup ... a great job, a happy marriage, three wonderful kids and everything going for them. Until one day, they didn't anymore. In this tender, wise and unexpectedly funny talk, Laats describes the profound lessons he's learned over the years as a father, offering insights that will resonate with anyone who's ever had any kind of family.

After the talk, Shoshana interviews Dr. Nadine...

While most people think of acne as a skin condition for adolescents, it can also develop in adults. In this bonus episode from CBC’s The Dose, host Dr. Brian Goldman speaks with the head of dermatology at Dalhousie University, Dr. Kerri Purdy. She shares some of the risk factors for acne (genes and hormones, not necessarily diet) as well as the latest treatments.

The Dose from CBC Podcasts provides a weekly look at the health ne...

Does the type and amount of light you’re exposed to during the day change how well you sleep at night? Diving into the effects of daylight on your internal biological clock, sleep scientist Christine Blume shares practical tips for making natural light part of your daily routine — and shows why stepping outside might be the simplest, most impactful change you can make to get better rest.

After the talk, Shoshana interviews Dr. M...

Why does losing weight often feel like an uphill battle? Physician Katherine Saunders unpacks how our bodies are wired to store fat, revealing that obesity isn’t simply a lack of willpower — it’s a complex, chronic disease rooted in evolutionary biology. She shares the science behind the latest breakthroughs in treatment, from lifestyle interventions to powerful new medications.

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Do you hate the taste of cilantro and chocolate? You might be a super taster! Rachel Herz is a neuroscientist at Brown University who specializes in taste and smell. In this episode, Adam, Rachel, and Adam’s wife Allison Sweet Grant investigate the sources of their different food preferences, uncover the overlooked power of smell, and analyze the effects of the gene that can turn some people into picky eaters.

This episode or...

You know it's important to take care of your physical and mental health. But what about your social health? Social scientist Kasley Killam shows how feeling a sense of belonging and connection has concrete benefits to your overall health — and explains why it may be the missing key to living a longer and happier life.

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At the plant-based burger chain Slutty Vegan, Pinky Cole is flipping the script on vegan food with bold style. In conversation with host of "TED Radio Hour" Manoush Zomorodi, she shares the highs and lows of her entrepreneurial journey, from her roots in Baltimore to the grease fire that took her first storefront in Harlem. Learn more about the authenticity, resilience and community that went into building a multimillion-dollar veg...

After a mysterious wave of tics and twitches swept through a small-town high school in New York, documentary podcaster Dan Taberski set out to investigate what was really happening. Drawing on extensive research and intimate interviews with the people involved, he explores the roots of mass hysteria — and what it reveals about the line between illness and belonging. What happens when the very thing that makes us sick ... is also wh...

When anxiety rears its head, we often just want it to go away. Clinical psychologist David H. Rosmarin asks us to consider instead the positive role anxiety can play in our lives, sharing four practical steps to transform it from your enemy into your ally.

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Why is having the sex talk, admitting you passed gas, or being open about your body hair so seemingly uncomfortable for all of us? Journalist and host of the podcast, Embodied, Anita Rao, joins Chris this week to discuss why having open conversations about taboo topics like sex, relationships, and our bodies can help us understand ourselves better and feel less shame.

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There's a reliable indicator of a woman's future likelihood of cardiovascular disease — but it rarely gets asked about, says obstetrician and researcher Meryam Sugulle. She delves into the role of the placenta in pregnancy, how it can predict health outcomes and the single question that should be worked into routine health screenings.

After the talk Shoshana speaks with Dr. Sharmila Makhija, the founding Dean and CEO of the Ali...

TED Fellow and equity bioengineer Erika Moore investigates how cells controlling inflammation behave differently depending on a patient's background. By focusing on the "who" behind the disease, Moore is uncovering why certain diseases disproportionately affect certain ethnicities, paving the way for more inclusive and effective health care.

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In 1952, polio was everywhere: killing or paralyzing roughly half a million people annually. Yet just 10 years later, paralytic polio cases in the US dropped by 96% and we were on track to get rid of polio for good. But in recent years, the virus started striking back. So, what’s behind these recent spikes? Explore the dangers of poliovirus and the possibility of eradicating this deadly disease. [Directed by Anton Bogaty, narrated ...

All year long, researchers at hospitals around the world collect samples from flu patients and send them to top virology experts with one goal: to design the vaccine for the next flu season. But why do we need a new one every year? Vaccines for diseases like mumps and rubella offer a lifetime of protection with two shots early in life; what’s so special about the flu? Melvin Sanicas explains. [Directed by Andrew Foerster, narrated ...

Ethan Lindenberger never got vaccinated as a kid. So one day, he went on Reddit and asked a simple question: "Where do I go to get vaccinated?" The post went viral, landing Lindenberger in the middle of a heated debate about vaccination and, ultimately, in front of a US Senate committee. Less than a year later, the high school senior reports back on his unexpected time in the spotlight and a new movement he's leading to fight misin...

Have we lost the practical wisdom of what happens as people die? With lessons from a career witnessing thousands of people's final breaths, palliative care expert Kathryn Mannix urges us to demystify the experience of death, sharing how a better understanding of what actually happens can reduce fear in the final days, for you and your loved ones. After the talk, Shoshana shares how one patient changed her life forever and led her t...