Contactless Stress Monitoring using Wireless Signals

According to one aspect of the disclosure, a method for measuring stress of a subject includes: transmitting, by a sensor, a wireless signal within an environment comprising the subject; measuring reflections of the wireless signal to generate a physiological signal responsive to changes in distance between the subject and the sensor over time; processing the physiological signal to extract feature data of the subject; and providing the feature data as input to a stress classification network to determine a stress level of the subject.