Smartwatches commonly use heart rate variability to monitor stress. Columnist Helen Thomson explores what this metric ...

Physicists have long assumed that the universe is uniform at very large scales, but evidence is emerging this is wrong and ...

Matt von Hippel is a freelance science writer based in Copenhagen, with a background in particle physics. His writing has ...

People with cognitive decline or early-stage dementia saw their symptoms improve when given bespoke treatment plans that ...

Exercise has been touted as a tool for managing and treating long covid, but much of the evidence has neglected one of its ...

The food industry has made big promises to reduce emissions and become more sustainable, but a review concludes that many of ...

A clinical trial to reverse age-related vision conditions using stem cell treatment could finally deliver on the promise of a ...

Physicists have long suspected that there is a layer of physical reality beneath quantum theory and a new mathematical model ...

Measuring the strength of gravity is extraordinarily difficult, and different experiments have always disagreed – but a new ...

The rise of a new generation of radiotherapies means we will soon need much greater quantities of radioactive atoms. That's ...

A powerful AI kept from public access because of its ability to hack computers with impunity is making headlines around the ...

During the Cretaceous, 19-metre-long predatory octopuses swam the seas, and evidence from their fossilised remains suggest ...