The science of pain is complex and its assessment subjective, leading to bias and health inequality. Now, researchers are searching for a reliable, objective measure of pain. How much does it hurt?

Pain has always been in the eye of the beholder. Doctors evaluating patients, as well as scientists studying pain, have had to rely on subjective descriptions, making pain notoriously difficult to ...

For the first time, scientists have been able to predict how much pain people are feeling by looking at images of their brains, according to a new study led by the University of Colorado Boulder. For ...

Management experts have debated for decades the most useful way to assess employee performance. In today's businesses, employers tend to rely on a mix of subjective and objective measures as part of a ...