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Detecting Mental Stress with simple wearable Heart Rate Sensors...
"Continuous Detection of Physiological Stress with Commodity Hardware"
https://dl.acm.org/doi/abs/10.1145/3361562
So a #PineTime Smart Watch @PINE64 (with built-in Heart Rate Sensor) can be used to detect Mental Stress... Maybe as Lie Detector too? 🤔