Casey Johnston is not your typical health and fitness influencer. She joins host Rachel Feltman to discuss how finding joy in strength training changed her relationship to fitness, food and body image. Johnston’s new book, A Physical Education, reflects on engaging with exercise in a balanced way.

Recommended reading:

You can get Johnston’s book A Physical Education here

You can also get Johnston’s training program book LIFTOFF: Couch to Barbell here

Read her newsletter She’s a Beast

Or follow her on Bluesky

Tell us what you think! Take our survey for the chance to win some SciAm swag!

http://sciencequickly.com/survey 

E-mail us at [email protected] 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 Rachel Feltman, Fonda Mwangi, Kelso Harper, Naeem Amarsy and Jeff DelViscio. This episode was hosted by Rachel Feltman. Our show is edited by Alex Sugiura with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

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The congressionally mandated National Climate Assessment grinds to a halt. Amazon launches its first round of Internet satellites. The European Space Agency launches a satellite to measure the biomass of Earth’s trees. New data from NASA’s Juno spacecraft offer insights into Jupiter and Io. Claims of Tyrannosaurus rex leather are, predictably, misleading. 

Recommended reading:

Trump Dismisses Scientists Writing Key Climate Reporthttps://www.scientificamerican.com/article/trump-dismisses-scientists-writing-the-national-climate-assessment/ 

Jupiter’s Supervolcanic Moon Io Dazzles in Photos from NASA’s Close Flybyshttps://www.scientificamerican.com/article/jupiters-supervolcanic-moon-io-dazzles-in-photos-from-nasas-close-flybys/ 

Tell us what you think! Take our survey for the chance to win some SciAm swag!

http://sciencequickly.com/survey 

E-mail us at [email protected] 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 Rachel Feltman, Fonda Mwangi, Kelso Harper, Naeem Amarsy and Jeff DelViscio. This episode was hosted by Rachel Feltman. Our show is edited by Alex Sugiura with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

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Conservationists are ringing the alarm about the fungi facing extinction. The International Union for Conservation of Nature (IUCN) Red List features vulnerable pandas and endangered tortoises, but it also highlights more than 400 fungi species that are under threat. Gregory Mueller, chief scientist emeritus at the Chicago Botanic Garden and coordinator of fungal conservation programs at the IUCN, and Anders Dahlberg, a professor of mycology at the Swedish University of Agricultural Sciences, explain the critical role fungi play in our environment and ways we can protect these threatened species.

Recommended reading:

Mysterious ‘Dark Fungi’ Are Lurking Everywhere 

For fans of The Last of Us, our 2023 podcast on real zombifying fungi

E-mail us at [email protected] 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 Rachel Feltman, Fonda Mwangi, Kelso Harper, Naeem Amarsy and Jeff DelViscio. This episode was hosted by Rachel Feltman. Our show is edited by Alex Sugiura with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

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Griefbots, artificial intelligence chatbots that mimic deceased loved ones, are increasingly in popularity. Researcher Katarzyna Nowaczyk-Basińska reflects on what death, grief and immortality look like in the digital age. She shares insights from a project that she is leading as a AI2050 Early Career Fellow: Imaginaries of Immortality in the Age of AI: An Intercultural Analysis. Plus, we discuss the ethical and privacy concerns surrounding how the data of the deceased are used and what consumers should be on the lookout for if they want to use griefbots. 

Recommended reading:

You can read a recent paper on griefbots co-authored by Nowaczyk-Basińska:

https://link.springer.com/article/10.1007/s13347-024-00744-w

And you can keep up with her research:

https://katarzynanowaczykbasinska.pl/en/dr-katarzyna-nowaczyk-basinska/

Read our coverage of the tricky ethical debates around AI:

https://www.scientificamerican.com/article/the-god-chatbots-changing-religious-inquiry/ 

E-mail us at [email protected] 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 Rachel Feltman, Fonda Mwangi, Kelso Harper, Naeem Amarsy and Jeff DelViscio. This episode was hosted by Rachel Feltman. Our show is edited by Alex Sugiura with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

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We’re taking a break from our usual weekly news roundup to do a little time travel. In 1925 Scientific American covered a total solar eclipse that featured some surprising solar shadow play and a prediction about today’s eclipses. Plus, we review some long-gone sections of the magazine that tried to verify mediums and show off zany inventions!

Recommended reading:

You can read more from our archives here: https://www.scientificamerican.com/archive/issues/ 

E-mail us at [email protected] 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 Rachel Feltman, Fonda Mwangi, Kelso Harper, Naeem Amarsy and Jeff DelViscio. This episode was hosted by Rachel Feltman. Our show is edited by Alex Sugiura with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

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Wild NYC author Ryan Mandelbaum takes host Rachel Feltman through New York City’s Prospect Park to find urban wildlife. They explore the city’s many birds, surprising salamanders and unexpected urban oases. Plus, they discuss what the rules of engagement with wildlife are and how you can find wildlife in your own urban or suburban environment. 

Recommended reading:

Read Wild NYC: Experience the Amazing Nature in and around New York City, which is out now.

Listen to our episode on protecting wildlife wherever you are. 

E-mail us at [email protected] 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 Rachel Feltman, Fonda Mwangi, Kelso Harper, Naeem Amarsy and Jeff DelViscio. This episode was hosted by Rachel Feltman.

Our show is edited by Alex Sugiura with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

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When writer Stephen S. Hall was a child, he would capture snakes—much to his mother’s chagrin. Now the science journalist is returning to his early fascination In his latest book, Slither: How Nature’s Most Maligned Creatures Illuminate Our World. The book explores our long, complicated relationship with snakes. Plus, Hall chats about humans’ and other animals’ evolved reactivity to the presence of snakes and the adaptations that keep snakes alive in even the most extreme environments.

Recommended reading:

Slither is out now: https://www.hachettebookgroup.com/titles/stephen-s-hall/slither/9781538741337/ 

An Evolutionary ‘Big Bang’ Explains Why Snakes Come in So Many Strange Varieties

https://www.scientificamerican.com/article/an-evolutionary-big-bang-explains-why-snakes-come-in-so-many-strange-varieties/ 

Venomous Snakes May Spread into Vulnerable Communities because of Climate Change https://www.scientificamerican.com/article/venomous-snakes-are-spreading-because-of-climate-change/ 

E-mail us at [email protected] 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.

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Measles cases are going up—and a federal scientist has warned that case counts have probably been underreported. Another vaccine-preventable illness, whooping cough, sees a troubling increase in cases. Ancient humans found sun-protection solutions when Earth’s magnetic poles wandered. A colossal squid has been captured on video in its natural habitat for the first time. Plus, we discuss evidence that Mars once had a carbon cycle and a planet that is orbiting a pair of brown dwarfs. 

Recommended reading:

This Is the First Colossal Squid Filmed in the Deep Sea—And It’s a Baby! https://www.youtube.com/watch?v=6f8leNRUXdo&t=1s 

RFK, Jr., Is Wrong about Cause of Rising Autism Rates, Scientists Say https://www.scientificamerican.com/article/the-real-reason-autism-rates-are-rising/ 

How to Talk about Vaccines in an Era of Scientific Mistrust https://www.scientificamerican.com/article/why-does-vaccine-hesitancy-occur-and-how-can-people-combat-it/ 

E-mail us at [email protected] 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 Rachel Feltman, Fonda Mwangi, Kelso Harper, Naeem Amarsy and Jeff DelViscio. This episode was hosted by Rachel Feltman. Our show is edited by Alex Sugiura with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

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Senior mind and brain editor Gary Stix has covered the breadth of science and technology over the past 35 years at Scientific American. He joins host Rachel Feltman to take us through the rise of the Internet and the acceleration of advancement in neuroscience that he’s covered throughout his time here. Stix retired earlier this month, and we’d like to thank him for his intellect, inquisitiveness and inspiring run at Scientific American! 

Read some of Gary Stix’s recent coverage of neuroscience and psychology:

Even Four-Year-Olds Instinctively Fact-Check for Misinformation https://www.scientificamerican.com/article/even-four-year-olds-instinctively-fact-check-for-misinformation/ 

You Don’t Need Words to Think https://www.scientificamerican.com/article/you-dont-need-words-to-think/

Wikipedia Searches Reveal Differing Styles of Curiosity https://www.scientificamerican.com/article/wikipedia-searches-reveal-differing-styles-of-curiosity/ 

E-mail us at [email protected] 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 Rachel Feltman, Fonda Mwangi, Kelso Harper, Naeem Amarsy and Jeff DelViscio. This episode was hosted by Rachel Feltman with guest (and now retired senior editor!) Gary Stix. Our show is edited by Alex Sugiura with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

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Hypochlorous acid is a promising disinfectant that is difficult to commercialize because it is not very shelf-stable. Senior features editor Jen Schwartz takes us through what the science of this nontoxic disinfectant is and explains why its popularity in the beauty aisle is only the beginning. 

Recommended reading: 

The Nontoxic Cleaner That Kills Germs Better Than Bleach—And You Can Use It on Your Skin https://www.scientificamerican.com/article/hypochlorous-acid-is-trending-in-skin-care-and-cleaning-but-does-it-work/ 

E-mail us at [email protected] 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 Rachel Feltman, Fonda Mwangi, Kelso Harper, Naeem Amarsy and Jeff DelViscio. This episode was hosted by Rachel Feltman with guest Jen Schwartz. Our show is edited by Alex Sugiura with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.

Learn more about your ad choices. Visit megaphone.fm/adchoices