Stress Tracking Wearables Do They Really Work?

Can consumer wearables reliably detect stress? We review the science behind HRV, EDA, and PPG sensors, summarize the research, and outline practical uses, limits, and health implications.

How Do Smart Watches Measure Stress?

Learn how smartwatches combine sensors like PPG, EDA, skin temperature and machine-learning algorithms to estimate stress in real time—and what affects their accuracy.