Episodios

  • Why Kratom Is At The Heart Of A Big Public Health Debate

    Why Kratom Is At The Heart Of A Big Public Health Debate
    Dec 29 2025
    Kratom and 7-OH products are available in many smoke shops. But earlier this year, the FDA recommended certain 7-OH products be scheduled alongside opioids. This isn’t the first time kratom has come under scrutiny. Nearly a decade ago, the DEA wanted to make certain active ingredients in kratom controlled substances. Meaning products would go from being widely available to highly restricted. After a massive wave of protest, the DEA decided not to move forward. Producer Rachel Carlson joins host Emily Kwong to talk about what could happen this time around, and what scientists know – and don’t know – about kratom and 7-OH.


    Interested in more of the science behind drugs and supplements? Email us your question at shortwave@npr.org.


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    13 m
  • Why Drones Are Catching Whale Breaths

    Why Drones Are Catching Whale Breaths
    Dec 26 2025
    Scientists in the Arctic are catching the exhaled breaths of whales to better understand their health. How? Drones. Whales breathe through their blowholes, which are the equivalent of nostrils on their heads. By studying the microbes in exhaled whale breaths, scientists are piecing together how deadly diseases spread in whale populations. Host Emily Kwong and producer Berly McCoy talk to All Things Considered host Juana Summers about what scientists can do with this information, from reducing stress on whales and monitoring ocean health to warning people who could be in close proximity to whales carrying zoonotic diseases.


    Interested in more science on charismatic megafauna? Email us your question at shortwave@npr.org.


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    10 m
  • Drinking Turns Some Red With Asian Glow—And May Fight Tuberculosis

    Drinking Turns Some Red With Asian Glow—And May Fight Tuberculosis
    Dec 24 2025
    Ever gotten a scarlet, hot face after drinking alcohol or know someone who has? Many people felt it as they celebrate the holidays with loved ones, sipping mulled wine, cocktails or champagne. That's because this condition, commonly called "Asian flush" or "Asian glow," affects an estimated half a billion people, who can't break down aldehyde toxins that build up in their bodies. But what if there's a benefit to having Asian glow? Katie Wu, a staff writer for The Atlantic, has looked into the research as to why the condition might have been a powerful tool for some of our ancestors to survive disease. (encore episode)

    Questions about other potential tradeoffs for our genetics? Email us at shortwave@npr.org. We've love to hear from you and we might cover it in a future episode!Read Katie's article to learn more.Questions about other potential tradeoffs for our genetics? Email us at shortwave@npr.org. We've love to hear from you and we might cover it in a future episode!Listen to every episode of Short Wave sponsor-free and support our work at NPR by signing up for Short Wave+ at plus.npr.org/shortwave.This episode was produced by Rebecca Ramirez, edited by Berly McCoy and fact-checked by Brit Hanson. Gilly Moon was the audio engineer.

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    14 m
  • Why Suicide Prevention is 'Everyone's Business'

    Why Suicide Prevention is 'Everyone's Business'
    Dec 23 2025
    Written by Jo Lambert, ‘Hold The Hope’ is now being used as suicide prevention training material by the UK’s National Health Service Mental Health Trust. Emily Kwong speaks with Rhitu Chatterjee about the inner strength of those who live with suicidality, how a song is opening up new conversations for mental health care, and how caregivers can help a person choose life, despite having persistent thoughts of death.

    If you or someone you know may be struggling with suicidal thoughts, contact the 988 National & Suicide Crisis Lifeline by calling or texting 988.

    Listen to the full version of the ‘Hold The Hope’ song here

    Read more of Rhitu’s reporting on ‘Hold the Hope’ here

    Listen to Rhitu and Emily’s previous conversation about practical ways to help someone at risk of suicide here

    Interested in more stories about mental health care? Email us your question at shortwave@npr.org.

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    14 m
  • No, Raccoons Aren’t Pet-Ready (Yet)

    No, Raccoons Aren’t Pet-Ready (Yet)
    Dec 22 2025
    Dogs are man’s best friend. And it’s no secret that we at Short Wave love cats (Regina has four)! Both of these iconic pets have been domesticated – evolved and adapted to live alongside humans – for millennia. And a recent study suggests that the common raccoon may be on its first steps towards joining them.

    So how do scientists look for signs of domestication and what do those signs mean? And could you have a litter box trained raccoon in your lifetime? We talk to the study’s lead author, Raffaela Lesch, to find out.

    Interested in more animal science stories? Email us your question at shortwave@npr.org.


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    15 m
  • GLP-1 Pills Are On The Way. Here's What To Know

    GLP-1 Pills Are On The Way. Here's What To Know
    Dec 19 2025
    You may have heard of Ozempic, and other GLP-1 drugs. They’re everywhere. And they typically involve weekly injections — which can have a sticker price of over a thousand dollars a month. And insurance coverage has been tricky to navigate for a lot of people. That’s why there’s a lot of excitement around a new pill form of the drug. NPR Pharmaceuticals Correspondent Sydney Lupkin chats about these experimental pills with host Emily Kwong.


    Check out more of NPR’s coverage about GLP-1s.


    Interested in more health stories? Email us your question at shortwave@npr.org.


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    12 m
  • The Indicator: Take A Penny, Leave A Penny, Get Rid Of The Penny

    The Indicator: Take A Penny, Leave A Penny, Get Rid Of The Penny
    Dec 18 2025

    In November, the U.S. stopped production of the humble penny after 232 years in circulation. On today’s show, Darian Woods and Wailin Wong from NPR's daily economics podcast The Indicator unpack the fiscal math that doomed the penny, and an artist pay tribute to this American icon.

    Follow the Indicator on Apple Podcasts or Spotify.

    View more of Robert Wechsler’s artwork here.

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    11 m
  • "A Very, Very Big Deal." Countries Take On Fossil Fuels

    "A Very, Very Big Deal." Countries Take On Fossil Fuels
    Dec 17 2025
    Many countries are frustrated with U.N. climate conferences. While some countries urgently want to transition away from fossil fuels — the main driver of global warming — others are blocking that language from climate agreements. Today on the show, Emily talks with Julia Simon from NPR’s climate desk. She takes us to Brazil and introduces us to a group of countries that are trying something new.

    Interested in more science and climate related news? Email us your question at shortwave@npr.org.

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    14 m