A handful of studies suggest that dehydration could be slowing you down, cognitively speaking. Helen Thomson explores how much water we really need to stay sharp
Injuries from the war in Ukraine have forced the country to develop highly advanced prostheses. Matthew Sparkes looks at what the rest of the world can learn from its efforts
The series of heatwaves Europe faced this summer took their toll on glaciers. Alec Luhn heads to Switzerland to hear about the impact
As longer, hotter summers become the norm, there are things you can do to help your body better adapt to high temperatures, discovers Alice Klein
An isolated population of Neanderthals is shedding light on the species' demise. Palaeoanthropologist Ludovic Slimak takes Alison George inside the cave where they lived and died
A drug made of nanoparticles and antibodies created nerve cells from another type of brain cell, which relieved symptoms in a model of Alzheimer's disease, finds Carissa Wong
Drugs designed to prevent muscle loss and boost muscle growth are being tested in clinical trials. Are these the next big thing after GLP-1 drugs, asks Michael Le Page
