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Hosted by Jad Abumrad and Robert Krulwich, Radiolab is a show about curiosity. Where sound illuminates ideas, and the boundaries blur between science, philosophy, and human experience.

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A journey through fascinating ideas, astonishing inventions, and new ways to think and create. Based on riveting TEDTalks from the world's most remarkable minds.
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TED Radio Hour

A journey through fascinating ideas, astonishing inventions, and new ways to think and create. Based on riveting TEDTalks from the world's most remarkable minds.

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The Pulse

The Pulse Episode Archive

Over the past decade or two, the number of urgent care centers in the U.S. have doubled — in part, because they fill a void in the health care market, offering fast and convenient care to patients who would otherwise face long wait times at the ER, and longer wait times to see a primary care physician.  (AP Photo/Ted Shaffrey)
The Pulse
Health

Inside the Boom of Urgent Care: How It’s Changing American Medicine

We take a look at the rapid rise of urgent care, what’s fueling it, and how it’s affecting patients

Air Date: April 3, 2026

Listen 47:56
(Shisuka/Bigstock)
The Pulse
Health

Why We Need to Talk About Poop

Neurogastroenterologist Trisha Pasricha tells us what’s shaping our bowel movements, and what that means for our health.

Air Date: April 1, 2026

Listen 44:17
Typewriter
The Pulse
Health

The Problem with Being Perfect: How Unrealistic Standards Hurt Our Minds and Bodies

A look at what causes perfectionism, how it affects our lives and health, and how we can escape its grip.

Air Date: March 27, 2026

Listen 49:54
Katharine Burr Blodgett, in her laboratory, examines a tube that was coated to make the glass non-reflecting, circa 1935. (Courtesy of the Museum of Innovation and Science)
The Pulse
Science

Unearthing the Hidden Stories of Women Scientists

A look at several great women in science — and why so many of them, and their contributions, have been forgotten.

Air Date: March 20, 2026

Listen 49:34
Loving Wife Hugging Disabled Husband, Spouse Support, Couple Affection, Care
The Pulse
Health

1 in 4 American Adults Is a Caregiver. So Why Does It Feel So Lonely?

A look at the challenges of caregiving,, from changing relationships, to dealing with loneliness and burnout.

Air Date: March 13, 2026

Listen 49:51
A man crosses out the words later, tomorrow and next week. He circles the word, now.
The Pulse
Science

Already Forgotten About Your New Year’s Resolution? Here’s Why

We talk with productivity expert Chris Bailey about achieving goals, who says aligning them with our values is key.

Air Date: March 10, 2026

Listen 31:52
A photo of a Black bakelite telephone. (Darren Pullman/Bigstock)
The Pulse
Science

Hello? From Bell’s First Call to Gen Z’s Telephobia: 150 Years of the Telephone

On the 150th anniversary of the world’s first call, we look back at how the telephone changed the world.

Air Date: March 6, 2026

Listen 49:39
(Frenchp/Bigstock)
The Pulse
Science

Beyond Anthropomorphism: The Science of Animal Emotions

We explore the inner lives of animals, from pain in lobsters to odd-couple friendships to empathy in baboons.

Air Date: February 27, 2026

Listen 49:34
A person is keying a vehicle for revenge. (Masarik/Big Stock)
The Pulse
Science

Revenge Feels Great — But the Cost is High

We talk with lawyer-turned-researcher James Kimmel about his book, "The Science of Revenge: Understanding the World's Deadliest Addiction — and How to Overcome It."

Air Date: February 20, 2026

Listen 49:18
A doctor uses breast imaging AI to get a second opinion on mammography ultrasounds. (AP Photo/Mary Altaffer)
The Pulse
Health

Will My Doctor Be a Bot? AI and the Future of Medicine

Physician and author Robert Wachter joins us to discuss what AI-powered health care will look like in the near future.

Air Date: February 18, 2026

Listen 37:33
(LIGHTFIELD STUDIOS INC.)
The Pulse
Science

Finding Your Match: The Science of Love and Attraction

We take a look at the science of love — from what fuels attraction, to the “secret sauce” of compatibility.

Air Date: February 13, 2026

Listen 49:34
A physician measures a patient's blood pressure with a stethoscope.
The Pulse
Health

Closing the Gap: Improving Health Outcomes for Black Americans

Why Black Americans suffer worse health outcomes, and past and present efforts to fight those disparities.

Air Date: February 6, 2026

Listen 49:34
A chilled beer mug on cafe table. (photosvit/bigstock)
The Pulse
Health

From Buzz to Burnout: How Alcohol Affects the Brain and Body

We explore our relationship with alcohol — why we consume it, how it affects us, and when it’s time to quit.

Air Date: January 30, 2026

Listen 49:34
The STS-51L mission clears the tower at Launch Complex 39B at NASA’s Kennedy Space Center in Florida on Jan. 28, 1986. (NASA)
The Pulse
Science

Challenger at 40: How the Disaster Shaped the Future of NASA

We remember NASA's Challenger disaster: What led up to the mission, what went wrong, and its lasting impact.

Air Date: January 27, 2026

Listen 37:45
This image made available by NASA in March 2017 shows Pluto illuminated from behind by the sun as the New Horizons spacecraft travels away from it at a distance of about 120,000 miles. (NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute via AP)
The Pulse
Science

Triumph, Tragedy and Ennui: Three NASA Missions That Shaped the Future of Space Exploration

We look back at the first spacecraft landing on Mars in 1976, the Challenger tragedy in 1986, and the long-game Pluto mission launched in 2006. 

Air Date: January 23, 2026

Listen 50:29
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