Dr. Sean Mackey, MD, PhD associate professor, anesthesiology director division of pain management Systems Neuroscience and Pain Lab, at his office at Stanford on Monday, June 30, 2008. ( Norbert von der Groeben/Stanford Hospital and Clinics )
Photobiomodulation, the use of light waves to change human biology, has boomed in recent years for all kinds of purposes, at medical clinics and at home. We wanted to know what the science says — and doesn’t say.