For scientists, pain has long presented an intractable problem: it is a physiological process, just like breathing or digestion, and yet it is inherently, stubbornly subjective—only you feel your pain. It is also a notoriously hard experience to convey accurately to others.
But, in the past two decades, a small number of scientists have begun finding ways to capture the experience in quantifiable, objective data. | READ THE FULL STORY
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