nature.com

Exercise rewires the brain — boosting the body’s endurance ( www.nature.com )

Exercise pumps up your muscles — but it might also be pumping up your neurons. According to a study published today in Neuron, repeated exercise sessions on a treadmill strengthen the wiring in a mouse’s brain, making certain neurons quicker to activate. This ‘rewiring’ was essential for mice in the study to gradually ...

Severe and widespread coral reef damage during the 2014-2017 Global Coral Bleaching Event ( www.nature.com )

Ocean warming is increasing the frequency, extent, and severity of tropical-coral bleaching and mortality. During 2014–2017, marine heatwaves caused the Third Global Coral Bleaching Event. We analyze data from 15,066 reef surveys globally during 2014–2017. Across all surveyed reefs, 80% and 35% experienced moderate or ...

AI may be about to dramatically improve medical care across the developing world. New research in Rwanda and Pakistan shows LLMs can outperform human doctors in diagnostic success. ( www.nature.com )

Human doctors take years to train, and the resources to train enough are so limited that few countries have enough doctors. We are so used to that state of affairs, it's hard to imagine having a magic wand that could be waved to solve the problem overnight. ...