Your gut bacteria may be keeping score of how fast your brain ages

UCLA researchers studied brain scans and gut bacteria from nearly 1,500 adults and found that the pace of brain ageing tracks with the microbes in our guts and the chemicals they make. Published in eBioMedicine, the work suggests changes linked to memory and mood may begin long before symptoms — and that the gut could one day offer early clues, or even levers, for protecting the ageing brain.

SDG 3 · Good health and well-being — Mechanism: tech innovation