More than a decade ago, a smattering of studies suggested that early cousins of drugs such as Ozempic and Mounjaro could prevent, or even reverse, signs of Alzheimer’s disease in mice.

Now, as the next generation of these medications has soared in popularity, and scientists discover they may have wide-ranging health benefits, research is revving up to investigate whether the drugs that upended diabetes and obesity care could also revolutionise Alzheimer’s treatment.