Huijia Health global original technology- Non-invasive Fiber Optic Physiological Monitoring Technology (nFOPT®) and Smart Care System using the principle of total reflection of optical fiber, there is no electromagnetic field change (no electromagnetic wave) in each action. It is a high-sensitivity and high-accuracy physiological sensor that can monitor changes in physiological activities such as breathing, heart rate, blood pressure, sleep analysis, and activity status.