Imagine swapping your smartwatch for a living skin implant that glows green when your body detects early signs of illness. Japanese researchers have engineered this next-gen health tech using stem cells, creating a self-sustaining sensor that tracks internal biomarkers and gives you a visual health update—no batteries required. Is this the future of personal health monitoring, or does it raise new privacy and bioethics concerns? Would you trust your body to bio-integrated tech? #Tech #HealthTech #Wearables