91av

Comment

Stay informed with commentary and opinion pieces on the latest issues in science, technology, health and the environment, written by expert 91av journalists and world-leading researchers and thinkers.

Health

Doctors need to listen to the evidence about bed rest in pregnancy

Bed rest is commonly prescribed for high-risk pregnancies. It can't hurt and might help, right? Wrong, says Jacqueline Sears

Comment
Mandatory Credit: Photo by Allison Bailey/NurPhoto/Shutterstock (15184551q) Thousands demonstrate for science and research funding, two areas that have been hit particularly hard by the Trump administration and Elon Musk's cuts via the Department of Government Efficiency, in Washington, on March 7, 2025. The demonstration at the Lincoln Memorial featured scientists, members of Congress, and music performers, among others. Thousands attend pro-science demonstration in Washington, DC, United States - 07 Mar 2025

Society

What politicians so often get wrong about science

Comment
https://science.nasa.gov/mission/mars-2020-perseverance/ NASA?s Perseverance Mars rover took this selfie, made up of 62 individual images, on July 23. A rock nicknamed ?Cheyava Falls,? which has features that may bear on the question of whether the Red Planet was long ago home to microscopic life, is to the left of the rover near the center of the image. NASA/JPL-Caltech/MSSS

Technology

Could brain-computer interface let us inhabit robot avatars on Mars?

Comment

Technology

Why pilots are worried about plans to replace co-pilots with AI

Comment
Teenage girl listening to music and playing with push pop toy while lying down on sofa at home

Mind

It is time to close the autism diagnosis gender gap

Comment
2CBM20E Humorous blue public toilet sign, Koh Samui, Thailand

Environment

How toilet waste is being rebranded as a valuable resource

Comment

Environment

In the city, anyone can be a naturalist-explorer

Comment
Mandatory Credit: Photo by Ute Grabowsky/imageBROKER/Shutterstock (13880334oy) Pack of Ozempic, antidiabetic drug for weight control, taken in a pharmacy in Niesky, 13.04.2023., Niesky, Germany Various 23aecabfaa

Health

The Ozempic era is only just beginning

Comment

Health

Why it would be utter madness to stop funding mRNA vaccine technology

Comment
MRI brain scans

Mind

Why you should slow down your brain’s ageing – and how to do it

Many of us have a brain that is older than our years. But there are plenty of things you can do to counteract this, says neuroscience columnist Helen Thomson

Comment

Physics

Why particle physicists are going wild for a record-breaking neutrino

Comment

Environment

An early-warning system for climate ‘tipping points’ is an awful idea

Comment

Technology

Should governments really be using AI to remake the state?

Comment

Technology

Content moderation offers little actual safety on Big Social Media

Comment