The human gut is an enormously complex ecosystem offering a running commentary on its host’s health. It has usually been difficult territory for doctors. A new type of device may help https://www.economist.com/science-and-technology/2026/05/27/tomorrows-medical-sensors-might-come-served-with-dinner?taid=6a1c4399b77dd20001616a03&utm_campaign=trueanthem&utm_medium=social&utm_source=voante