And why he thinks you should too.

Guest: Dylan Matthews, senior correspondent at Vox’s Future Perfect

This episode was made in partnership with Vox’s Future Perfect team.

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A neuroscientist argues that the focus on dreams has held back the scientific understanding of sleep. So he took dreams out of the picture and uncovered a new potential connection between the mind and body.

Guest: Mark Blumberg, behavioral neuroscientist at the University of Iowa

For show transcripts, go to vox.com/unxtranscripts

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Funding cuts and research censorship have shaken the foundations of America’s health and science agencies, leaving researchers shocked, confused, and afraid. What does this mean for the future of science?

For show transcripts, go to vox.com/unxtranscripts

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For thousands of years, there have been four basic tastes recognized across cultures. But thanks to Kumiko Ninomiya (a.k.a. the Umami Mama), scientists finally accepted a fifth. Could there be even more? (First published in 2022.)

Guests: Kumiko Ninomiya, biochemist and former director of the Umami Information Center; Gary Beauchamp, former director of the Monell Chemical Senses Center; Sarah Tracy, historian of science; Camilla Arndal Andersen, neuroscientist; Paul Breslin, professor at Rutgers University

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Some of the largest lakes in the world have been buried under miles of ice for millions of years. Is there life hiding down there? And if so, could life be found in even more extreme places … beyond our planet?

Guest: John Priscu, microbiologist at Montana State University

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Genetic libraries are treasure troves of information about life from around the world. They’re helping researchers develop everything from vaccines to crops to cosmetics. But who actually benefits from the discoveries scientists make using all this DNA and RNA?

Guests: Benji Jones, environmental correspondent at Vox’s Future Perfect; Deborah Fuller, professor of microbiology at the University of Washington

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Some scientists think an explosion of AI awareness and feeling might be just around the corner. Others think it’s impossible for an AI to ever become conscious. How will we know?

Guest: Oshan Jarow, staff writer at Vox’s Future Perfect

This episode was made in partnership with Vox's Future Perfect team.

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It’s that time of year again. If you’re changing things up, there’s a lot of diets out there that claim to help you live longer. Our friends at Today, Explained ask: How much of this is real and how much of it is nonsense?

Guests: Anahad O’Connor, health columnist at the Washington Post; Saul Justin Newman, researcher at the University College London Centre for Longitudinal Studies

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The wildest stories that never made it into our episodes. Until now.

Guests: Amy Boddy, anthropological scientist at the University of California, Santa Barbara; Jayme Locke, transplant surgeon at the University of Alabama at Birmingham; Jonathan Jiang, research scientist at the Jet Propulsion Laboratory

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Dogs were the first domesticated animal in history, emerging from wolves some 20,000 years ago. But how did wolves become dogs? To find the answer, scientists have to play with a lot of puppies. (First published in 2023.)

Guest: Kathryn Lord, evolutionary biology researcher at UMass Chan Medical School

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We know Neanderthals and early modern humans coupled up. But when did they meet, exactly? And where? Some fossilized smoke and a baby tooth might hold clues.

Guest: Adam Cole of HowTown

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