Understanding the science behind pain, from a simple "ouch" to the chronic and excruciating, has been an elusive goal for centuries. But now, researchers are reporting a promising step toward studying pain in action. In a study published in the Journal of the American Chemical Society, scientists describe the development of a new technique, which they tested in rats, that could result in better ways to relieve pain and monitor healing.Sandip Biswal, Frederick T.

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