The first placebo-controlled human evidence that a GLP-1 drug shifts epigenetic ageing clocks comes from an exploratory analysis of 84 people, and its authors are the first to say so.
A new dataset reconstructing more than a hundred years of children's heights shows that severe malnutrition is not inevitable – and Japan's history proves it can be beaten.
Two non-invasive tests cleared for the health service could spare women a diagnostic wait that now averages almost a decade.
In field trials in eastern Uganda, a cheap lotion made from the herb that delights cats repelled mosquitoes as well as the standard chemical DEET.
A study of 728 people in Spain's Basque region found that multilingual brains can appear up to 13 years younger than those of people who speak only one language.
A Nature study finds that diet shapes the gut's microbial ecosystem to boost immune-checkpoint therapy, pointing to short-term, targeted ways to help more patients respond.