Guardian Science Weekly

Why are scientists so excited about the vagus nerve? – podcast

Loading player...
Serving as a two-way ‘electrical superhighway’, the vagus nerve – which is actually a pair of nerves – allows for communication between the brain and the heart, lungs and abdominal organs. And because of this, it has been shown to help control things such as the heart rate, breathing, digestion and even immune responses. Now, scientists and health influencers are asking whether stimulating the vagus nerve could transform physical and mental health. Science correspondent Linda Geddes tells Ian Sample about her recent investigation into the hype and science surrounding the vagus nerve, and also whether her own experiment with an allegedly nerve-stimulating device is having any effect. Help support our independent journalism at theguardian.com/sciencepod
31 Aug 2023 English United Kingdom Science · Nature

Other recent episodes

The incredible science of the sleeping brain

Humans have been wondering why we sleep for thousands of years. Is sleep’s purpose rest and relaxation, memory consolidation or maybe cognitive processing? In the last 15 years, scientists have discovered another possible explanation – waste disposal. In 2012 neuroscientist Maiken Nedergaard’s lab discovered that the brain has its own…
2 Jun 14 min

Are robots nearing their ChatGPT moment?

Last month at Beijing’s half marathon, a robot named Lightning beat the human world record by nearly seven minutes. It’s the latest in a string of AI-powered milestones that have got people wondering whether robots are about to enter our everyday lives, just as chatbots have. And the country leading…
28 May 17 min

Do red-light masks really keep you looking young?

Home red-light therapy devices have exploded in popularity as masks, body wraps and mittens promise to reduce wrinkles, redness and even acne. But do the claims stack up, and what other benefits are scientists investigating? Ian Sample hears from his co-host, Madeleine Finlay, and the consultant dermatologist Dr Jonathan Kentley…
26 May 14 min

Can a name change transform PCOS outcomes for women?

After more than a decade of global consultation, polycystic ovary syndrome – which affects as many as one in eight women – has been renamed. The condition is caused by high levels of androgens, which can lead to symptoms such as excess hair, weight gain and irregular periods. To understand…
21 May 16 min
All episodes