"On a scale from one to ten, how would you rate your pain?" is the standard question doctors ask to assess pain. The problem is that pain tolerances vary, and one person's "three" may be someone ...

In a provocative new study, scientists reported Wednesday they were able to “see” pain on brain scans and, for the first time, measure its intensity and tell whether a drug was relieving it. Though ...

Chronic pain affects roughly 51 million adults in the United States alone, and for most of them, the available drug options remain blunt instruments: opioids that carry addiction risk, or ...