No, not that kind of soda. In “Keep the Stress Away with SoDA: Stress Detection and Alleviation System” (IEEE Trans. Multi-Scale Computing Systems, vol. 3, no. 4, 2017, pp. 269–282), Ayten Ozge Akmandor and Niraj K. Jha use machine learning and wearable medical sensors to implement a continuous, user-friendly stress coach.