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The Inquiry
What’s wrong with our guts?
The Inquiry
Sep 7, 2023

How much do you think about your gut? Are you taking a probiotic or prebiotic? If so, you’re not alone as globally we spend billions of dollars on soothing our stomachs.

Our guts do so much more than just digest our food and there’s a very special connection to our brain.

So how exactly does our gut work? And what do we need to do in order to keep it healthy?

Presenter: Tanya Beckett Producer: Louise Clarke Researcher: Matt Toulson Sound engineer: Nicky Edwards

Contributors: Geoff Preidis, a gastroenterologist at Baylor college of medicine at Texas children’s hospital in Houston Dr Jane Foster, Professor of Depression Research and Clinical Care at UT Southwestern Medical Center Martin Ham, Business Development Manager, NIZO Dr. Gail Hecht is Professor of Medicine and Microbiology/Immunology, and Gastroenterology and Nutrition

(Photo: Man bites in to cheeseburger. Credit: Emanuele Cremaschi/Getty Images)

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Jun 30, 2026
Can the New World Screwworm be stopped?

Flesh-eating parasitic flies have been found in the US state of Texas for the first time in decades. Known as the New World Screwworm, officials have now put plans in place to try and contain its spread. The fly feeds off warm-blooded animals, like cattle, dogs and horses, but if detected early enough, with treatment, the animals can make a full recovery. It can also infest humans, but human deaths are rare and it poses no food safety issues.

The New World Screwworm is not a new problem; it is considered endemic in South America and some parts of Central America, towards South America. But despite the United States declaring itself screwworm free in the 1960s, the country has since seen several outbreaks. Officials have been tracking this latest case since late 2024.

To date, the most widely used method to try and control the spread of the screwworm is the Sterile Insect Technique, whereby millions of flies are hatched and exposed to radiation, before they are released into the wild. And the idea here is that as the females only mate once in a lifetime, any eggs they lay will be unfertilised and will not hatch. There is currently only one facility hatching these flies in operation and there are not enough sterile flies being produced. In addition, there is a concern over a lack of knowledge among new veterinary recruits on how to deal with a problem that many may be experiencing for the first time.

So, on The Inquiry this week, we’re asking ‘Can the New World Screwworm be stopped?’

Contributors: Grace VanHoy, veterinarian and professor, UC Davis Weill School of Veterinary Medicine, California, USA Thomas Rath, author and assistant professor, History Department, University College London, UK Dr Phillip Kaufman, professor and head of department of entomology, Texas A&M University, chair of the Texas A&M AgriLife New World Screwworm Task Force, USA Rui Cardoso Pereira, head of insect pest control section, Joint FAO/IAEA Programme of Nuclear Techniques in Food and Agriculture, International Atomic Energy Agency, Vienna, Austria

Presenter: Charmaine Cozier Producer: Jill Collins Researcher: Amelia Cox Editor: Tom Bigwood Technical Producer: Craig Boardman Production Management: Phoebe Lomas and Liam Morrey

(Photo: New World Screwworm poster. Credit: Joel Angel Juarez/Getty Images)


24min 12sec

Jun 23, 2026
Is technology ruining sport?

This year, technology has more influence in officiating sports than ever before.

At the men's World Cup, the role of virtual assistant referee technology (VAR) has been extended to include two more on-pitch scenarios while in tennis, umpires use electric line calling systems (ELC) to make final decisions.

Both bits of kit aim to improve the accuracy. It’s become easier to consider match-defining moments through these tracking and review systems’ specialised cameras. But, this information takes human officials valuable time to analyse.

Football fans criticise VAR for this reason, saying it delays match momentum. Top ranking tennis players Aryna Sabalenka and Alexander Zverev have also complained as these systems are not yet infallible. If technology is as imperfect as a human referee or umpire and can interrupt the fan experience too, why do elite sports rely on it?

We speak to Carlo de Marchis, independent adviser in sports and media technology in Italy; Dr Otto Koblinger, former sports scientist, Munich Technical University, Germany and senior data manager, Saudi Pro League; Professor Odilon Roble, sport philosopher and psychoanalyst, University of Campinas (UNICAMP), Brazil and Matt Moore, associate dean, University of Kentucky’s college of social work, US.

Presenter: Tanya Beckett Producer: Evie Yabsley Researcher: Amelia Cox Sound engineer: Nicky Edwards Production co-ordinator: Phoebe Lomas and Liam Morrey Editor: Tom Bigwood

(Photo: VAR check. Credit: Dan Mullan/Getty Images)


23min 04sec



What’s wrong with our guts?

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