The ability to examine lots of human bodies as they go about their daily lives is also changing how clinical studies of new drugs are done. According to iqvia, a research firm, 10% of late-stage clinical trials in 2020 used connected devices to monitor people, up from 3% in 2016. A catalogue by the Digital Medicine Society, an American organisation, lists more than 300 examples of digital biomarkers that are used in trials.

https://www.economist.com/technology-quarterly/2022/05/01/data-from-wearable-devices-are-changing-disease-surveillance-and-medical-research