Can a machine read your pain? scientists test two monitors against heat, cold, and spicy sauce

This study tests two devices that claim to measure pain by tracking body signals like skin conductance and heart rate. About 100 healthy adults will be exposed to various unpleasant stimuli—heat, cold, pressure, a spicy taste, and a video of a needle insertion—while both devices record their responses. The goal is to see how well these objective measurements match each other and the volunteers' own ratings of discomfort. The results could lead to better, more consistent ways to assess pain in medical settings.