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This episode of Short Wave presents a science news roundup covering three distinct studies. First, researchers in Israel investigated how communal eating affects metabolism, finding that people who eat with others clear glucose from their blood 24 percent more efficiently than those eating alone. Second, a team of behavioral ecologists surveyed bird volumes across 123 species, discovering an 800-fold difference in sound output and identifying new contenders for the world's loudest bird. Finally, scientists analyzing returned samples from the near-Earth asteroid Bennu determined the space rock formed closer to the sun than previously thought, shedding light on how water and organic material may have originally reached Earth.
The episode opens with a series of sponsor messages and a brief host introduction.
Regina Barber welcomes Ari Daniel and Sasha Pfeiffer and sets up the episode’s topics.
Researchers in Israel find that eating with others helps regulate blood glucose more efficiently than eating alone.
Brain and behavioral scientists explain how social cues trigger earlier insulin release and better glucose clearance.
Scientists measure the loudness of 123 bird species, revealing an 800‑fold range and surprising comparisons to mammals.
The study finds larger body size and wider mouth openings correlate with louder songs, though patterns remain unclear.
NASA’s Benue mission returns samples that suggest the asteroid formed closer to the Sun, hinting at water and organic delivery to early Earth.
The hosts thank each other, recap the episode, and provide final sponsor messages and credits.
Communal Eating Lowers Blood Sugardata
Researchers found that people who eat together clear glucose from their blood 24 percent faster than those eating alone. Scientists suggest social cues or the feeling of safety in company prompts the brain to metabolize food more efficiently.
Brain Anticipates Insulin Releaseinsight
Lead author Sheer Adzil suggests that social cues associated with eating push the brain to start metabolizing earlier, such as by releasing insulin sooner to regulate blood sugar.
Vast Diversity in Bird Volumedata
A new study measuring 123 bird species revealed an 800-fold volume difference between the softest hummingbirds and the loudest contenders like the bare-throated bellbird.
Asteroid Bennu Samples Arrivestory
NASA's spacecraft brought samples of the asteroid Bennu back to Earth, allowing scientists to study pristine space rocks rather than relying solely on meteorites that survived atmospheric entry.
Origins of the Solar Systeminsight
By examining chemical compositions of Bennu samples, researchers determined the asteroid formed near the water ice line, suggesting similar asteroids may have brought water and organic material to the young Earth.
“Researchers calculated the social group was 24% more efficient at clearing glucose from their blood.”
“Sheer Adzil thinks one possibility is that our brains associate other people with eating and that social cue might push our brains to start the metabolizing process earlier, like by releasing insulin sooner, which helps regulate blood sugar.”
“There was an 800-fold difference between the softest species, a kind of hummingbird you can barely hear, all the way up to a very loud trio comparable to the level of a jackhammer.”
Being more social has a ton of benefits: lower stress, decreased inflammation – even living a longer life! Recently, some scientists have added lowering your blood sugar to the list. To figure it out, researchers had people break bread both in duos and alone. And they think the results could tell us something about the roots of our social nature. Consider it another reason to prioritize our social lives. Interested in more science in the news? Email us your question at [email protected] mailto:[email protected]. Support public media with NPR+ and enjoy perks for over 25 podcasts like this one. This show’s perks include sponsor-free listening. Learn more at plus.npr.org http://plus.npr.org. See pcm.adswizz.com https://pcm.adswizz.com for information about our collection and use of personal data for sponsorship and to manage your podcast sponsorship preferences. NPR Privacy Policy https://www.npr.org/about-npr/179878450/privacy-policy
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