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Scientific American

Host Rachel Feltman, alongside leading science and tech journalists, dives into the rich world of scientific discovery in this bite-size science variety show.

Science, Quickly

Drugs known as glucagon-like peptide-1 receptor agonists, colloquially called GLP-1 medications, have gone from relatively obscure diabetes treatments to blockbuster weight-loss medications. But is the hype backed up by science? In this episode, freelance science journalist Bethany Brookshire joins host Kendra Pierre-Louis to talk about how these drugs mimic natural hormones, why they’re so effective and what the latest research about their broader health effects says. Plus, we discuss what a recently rolled-out GLP-1 pill, the first of its kind approved for obesity, could mean for the future of weight loss.

Recommended Reading:

Wegovy Weight-Loss Pills Are Now Available in the U.S.—Here’s What That Means“Doctors Are Worried about Prescribing GLP-1s to Certain Patients,” by Bethany Brookshire, in National Geographic. Published online November 20, 2025

“The Unexpected Ways Ozempic-like Drugs Might Fight Dementia,” by Bethany Brookshire, in National Geographic. Published online June 17, 2025 

“Is There Really an Ozempic Baby Boom? The Unexpected Ways GLP-1s Could Influence Fertility,” by Bethany Brookshire, in National Geographic. Published online November 4, 2025

E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for our daily newsletter.

Science Quickly is produced by Kendra Pierre-Louis, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura, with fact-checking by Shayna Posses and Aaron Shattuck. Our theme music was composed by Dominic Smith.
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Weighing the Good and Bad of Weight-Loss Drugs

Recent federal public health changes could affect children’s health, from vaccine access to essential medical care. In this episode, senior editor Dan Vergano breaks down what shifting national guidelines may mean for kids, why pediatric care is especially vulnerable and how states and medical experts are responding to protect families. Learn how these evolving health policies could shape long‑term outcomes for children and what’s at stake for public health in the U.S.

Recommended Reading:

U.S. Axes Number of Recommended Childhood Vaccines in Blow to Public Health

Trump Administration Moves to Severely Curtail Access to Gender-Affirming Care for Minors

U.S. Plan to Drop Some Childhood Vaccines to Align with Denmark Will Endanger Children, Experts Say

E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for our daily newsletter.

Science Quickly is produced by Kendra Pierre-Louis, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura, with fact-checking by Shayna Posses and Aaron Shattuck. Our theme music was composed by Dominic Smith.
Learn more about your ad choices. Visit megaphone.fm/adchoices

America’s Children Face a New Era of Health Risk

Why do most New Year’s resolutions fail? And how can science help us stick to them? Behavioral economist Katy Milkman joins Science Quickly to explain the “fresh start effect,” the motivational boost we get from temporal milestones such as the arrival of a new year, birthdays or even Mondays. She shares how to build habits that last and reveals why enjoying the process is key to real change.

Recommended Reading:

How to Change: The Science of Getting from Where You Are to Where You Want to Be. Katy Milkman. Portfolio, 2021

New Year’s Resolutions Are Notoriously Slippery, but Science Can Help You Keep Them

Choiceology, a podcast hosted by Katy Milkman 

Katy Milkman’s substack 

E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for Today in Science, our daily newsletter.

Science Quickly is produced by Kendra Pierre-Louis, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. Shayna Posses and Aaron Shattuck fact-check our show. Our theme music was composed by Dominic Smith.
Learn more about your ad choices. Visit megaphone.fm/adchoices

How to Make Your New Year’s Resolutions Stick

From viral slang such as “skibidi” to the rise of so-called brain rot, linguist and content creator Adam Aleksic, aka the “Etymology Nerd,” and associate editor Allison Parshall, who covers the mind and brain, unpack how social media and algorithms are reshaping the way we communicate. This episode first aired in September.

Recommended Reading

The Internet Is Making Us Fluent in Algospeak

E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover!

Discover something new every day: subscribe to Scientific American and sign up for Today in Science, our daily newsletter.

Science Quickly is produced by Kendra Pierre-Louis, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura. Shayna Posses and Aaron Shattuck fact-check the show. Our theme music was composed by Dominic Smith.

This episode was made possible by the support of Yakult and produced independently by Scientific American’s board of editors.
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ENCORE: Algorithmic Social Media Is Driving New Slang

The human body is capable of some truly incredible things. One of the most mysterious and debated phenomena is a release of fluid during sex that is often referred to as “squirting.” What’s actually happening, and why does it stir so much speculation? Wendy Zukerman, host of the hit podcast Science Vs, breaks down the science behind this fascinating topic, exploring what we know, what we don’t and what the controversy surrounding it is. This episode first aired in April.

Recommended reading:

What a Survey On Anal Sex and Masturbation Reveals About Prostates and Pleasure

Squirting: What's Really Happening?! (Science Vs)

E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for our daily newsletter.

Science Quickly is produced by Kendra Pierre-Louis, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura. Shayna Posses and Aaron Shattuck fact-check our show. Our theme music was composed by Dominic Smith.
Learn more about your ad choices. Visit megaphone.fm/adchoices

ENCORE: Understanding the Science of ‘Squirting’

Science doesn’t always get it right the first time—and that’s part of the journey. In this anniversary special, we explore how ideas about nerve damage, sustainable materials and alien life have done a full 180. This episode first aired in August.

Recommended Reading

Celebrating 180 Years of Scientific American

180 Years of Standing Up for Science

How Scientists Finally Learned That Nerves Regrow

Proof That Adult Brains Make New Neurons Settles Scientific Controversy

Plastics Started as a Sustainability Solution. What Went Wrong?

The Search for Extraterrestrial Life Is a Roller Coaster of Hope and Disappointment

E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for our daily newsletter.

Science Quickly is produced by Kendra Pierre-Louis, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura. Shayna Posses and Aaron Shattuck fact-check our show. Our theme music was composed by Dominic Smith.
Learn more about your ad choices. Visit megaphone.fm/adchoices

ENCORE: Science’s Greatest 180s

Christmas trees may seem timeless, but growing them is becoming increasingly challenging in a warming world. In this episode, host Kendra Pierre-Louis talks to Priya Rajarapu, a Christmas tree extension specialist at Oregon State University, about how climate change is reshaping tree farming—from drought and heat stress to seedling survival—and the research efforts aimed at keeping this holiday tradition alive.

Recommended Reading:

Tweaks to U.S. Christmas Trees Could Help Them Survive Climate Change

How Weather and Climate Change Affects Christmas Tree Production

The OSU Christmas Tree Program

E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for our daily newsletter.

Science Quickly is produced by Kendra Pierre-Louis, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. Shayna Posses and Aaron Shattuck fact-check our show. Our theme music was composed by Dominic Smith.
Learn more about your ad choices. Visit megaphone.fm/adchoices

The Quest for Climate-Ready Christmas Trees

In this year-end roundup, Scientific American editors break down how 2025 reshaped science across the board—from sweeping federal upheavals that disrupted long-standing research institutions to public health setbacks driven by vaccine rollbacks and rising measles cases to renewed hostility toward climate science and clean-energy policy and finally to the mind-bending dark energy findings that are shaking up cosmology. Together, their insights reveal how 2025 was a turbulent year for science on Earth and beyond—and what to watch closely in 2026.

Recommended Reading:

Cures for Sickle Cell Disease Arrive After a Painful Journey

NASA’s Moon Race Looks like a Losing Bet

Changing the FDA’s Vaccine Approval Process Could Threaten COVID, Flu Protection for Children

5 Charts Show Climate Progress as Paris Agreement Turns 10

Latest Dark Energy Study Suggests the Universe Is Even Weirder Than We Imagined

E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for our daily newsletter.

Science Quickly is produced by Kendra Pierre-Louis, Fonda Mwangi, Sushmita Pathak and Jeff DelViscio. This episode was edited by Alex Sugiura, with fact-checking by Shayna Posses and Aaron Shattuck. Our theme music was composed by Dominic Smith.
Learn more about your ad choices. Visit megaphone.fm/adchoices

2025: The Year Science Was Shaken

In this episode, take a dive into the underwater vocalizations of the endangered Hawaiian monk seal. Scientists analyzing thousands of hours of underwater recordings have uncovered a surprising array of previously unknown calls. Ocean writer Melissa Hobson explores how researchers captured the sounds of the species, why they matter for conservation and what they tell us about the social lives of one of the world’s rarest seals.

Recommended Reading:

“Underwater Sound Production of Free-Ranging Hawaiian Monk Seals,” by Kirby Parnell et al., in Royal Society Open Science, Vol. 12, No. 11; November 1, 2025

Melissa Hobson’s website

Wiggling Whiskers Help Hungry Seals Hunt in the Dark

E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for our daily newsletter.

Science Quickly is produced by Kendra Pierre-Louis, Fonda Mwangi and Jeff DelViscio. This episode was edited by Alex Sugiura, with fact-checking by Shayna Posses and Aaron Shattuck. Our theme music was composed by Dominic Smith.
Learn more about your ad choices. Visit megaphone.fm/adchoices

The Hidden Voices of Monk Seals

In this episode of Science Quickly, we present an inside look at one of the world’s most endangered whale populations: the southern resident orcas. Senior multimedia editor Kelso Harper joins host Kendra Pierre-Louis to share the story of a rare encounter with these killer whales off of the San Juan Islands. Also, we discuss what researchers and scientists are doing to understand and protect this iconic population.

Recommended Reading:

These Orcas Are on the Brink—And So Is the Science That Could Save Them 

Killer Whales and Dolphins May Team Up to Hunt Salmon

E-mail us at sciencequickly@sciam.com if you have any questions, comments or ideas for stories we should cover!

Discover something new everyday: subscribe to Scientific American and sign up for our daily newsletter.

Science Quickly is produced by Kendra Pierre-Louis, Fonda Mwangi and Jeff DelViscio. This episode was edited by Alex Sugiura, with fact-checking by Shayna Posses and Aaron Shattuck. Our theme music was composed by Dominic Smith.
Learn more about your ad choices. Visit megaphone.fm/adchoices

Inside the Struggle to Save an Orca Community

The grime on city buildings and may actively contribute to urban air pollution. Christopher Intagliata reports
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Sunlight Activates Smog-Causing Chemicals in City Grime

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