Just like men, women are increasingly being told by online influencers, that the classic symptoms of middle age could actually be down to low testosterone. In the second part of this miniseries exploring the hormone, Madeleine Finlay finds out what testosterone supplementation is doing for women. She hears from science journalist Linda Geddes, who is taking testosterone for low libido, and from prof Susan Davis, a consultant endocrinologist and head of the Monash University Women’s Health Research Programme. Susan explains what the evidence really shows about the benefits and risks of women taking testosterone

In part one of a miniseries exploring the popularity of testosterone, Madeleine Finlay hears from Professor Channa Jayasena of Imperial College London, who is chair of the Society for Endocrinology, about how this craze is manifesting in NHS clinics, and from ‘Sam’ who tells Madeleine about his own journey with the hormone

Madeleine Finlay speaks to Patrick Wintour, who has been reporting on Iran’s water crisis, while Prof Mohammad Shamsudduha of UCL explains what can be done to bring water supplies back from the brink

The Guardian’s science editor, Ian Sample, talks to Madeleine Finlay about three eye-catching science stories from the week

Studies detecting microplastics throughout human bodies have made for alarming reading in recent years. But last week, the Guardian’s environment editor, Damian Carrington, reported on major doubts among a group of scientists about how some of this research has been conducted

Ian Sample puts listeners’ questions on dreams and nightmares to Dr Michelle Carr, director of the Dream Engineering Laboratory in Montreal’s Centre for Advanced Research in Sleep Medicine, and author of the new book Into the Dream Lab

Ian Sample puts listener questions on sleep to Dr Allie Hare, consultant physician in respiratory and sleep medicine at Guy’s and St Thomas’ hospitals and president of the British Sleep Society

Last year was full of unexpected science news, from the discovery of a new colour, to the interstellar visitor 3I/Atlas passing by our solar system, and a world-first treatment with a personalised gene editing therapy. So what will this year bring? Ian Sample and science correspondent Hannah Devlin discuss the big stories likely to hit the headlines and share their predictions for 2026

Jillian Ambrose explains the appeal of Venezuelan oil, how easy it is to extract and what the capture of Nicolás Maduro tells us about Trump’s energy strategy

In this episode from October, the leading nutritional scientist Kevin Hall tells Ian Sample what he wants us all to understand about diet, exercise and weight loss, and what led to his departure from the National Institutes of Health

In this episode from June, Ian Sample chats to Madeleine Finlay about the appeal of mushroom drinks and supplements, and hears from the mycologist Prof Nik Money on what we really know about how fungi can affect our minds and bodies

Psychologists have typically believed we become less curious as we age, but recent research has shown curiosity actually becomes more targeted. In this episode from September, Madeleine Finlay hears from Dr Mary Whatley and Dr Matthias Gruber to find out why our curiosity changes

In this episode from July, Prof Michael Snyder tells Ian Sample what the drivers of these bursts of ageing could be, and how they might be counteracted

Dame Maggie Aderin-Pocock is a space scientist and science educator who has worked on a number of instruments that are revolutionising our view of the cosmos, including the James Webb Space Telescope. This year she will be giving the Royal Institution Christmas lectures, Britain’s most prestigious public science lectures, in which she will be exploring some of the big questions space science still has to answer.

We all know eating too much sugar is bad for our health – but would we be better off replacing it with artificial sweetener? It’s a question Science Weekly listener Marion posed recently and, as Madeleine Finlay tells Ian Sample, the answer is complicated. She explains what the science says about sugar v sweeteners with the help of Prof Havovi Chichger, from Anglia Ruskin University, and Prof Jim Krieger, from the University of Washington’s school of public health

The Free Birth Society was selling pregnant women a simple message: they could exit the medical system and take back their power by free birthing. But Nicole Garrison believes FBS ideology nearly cost her her life

Science editor Ian Sample sits down with co-host Madeleine Finlay to discuss three eye-catching stories from the week

Ian Sample hears from science correspondent Nicola Davis, who recently tried out a rage room as a means of channelling her fury, and from Brad Bushman, professor of communication at the Ohio State University. Is venting the most effective way to overcome anger, and if not, what is?

Science editor Ian Sample sits down with co-host Madeleine Finlay and science correspondent Hannah Devlin to hear about three eye-catching stories from the week

Artificial intelligence can execute tasks in seconds that once took humans hours, if not days to complete. While this may be great for productivity, some researchers are concerned that our increasing use of AI could be impacting our ability to tackle difficult problems and think critically. To find out where the science stands, and how worried we should be about the potential of AI to change how we think, Ian Sample hears from Madeleine Finlay and Sam Gilbert, professor of neuroscience at University College London