The project works with Starkey to explore the integration of physiological sensing into hearing aids by investigating whether in-ear microphones can detect cardiac signals and estimate heart rate in real time. It focuses on capturing acoustic signals from the ear canal and processing them into beats per minute using advanced signal processing techniques. The work demonstrates the technical feasibility and clinical value of continuous heart rate monitoring through hearing aids. By transforming hearing aids into health-monitoring devices, the project aims to enhance their functionality and support improved user adoption and health outcomes.