Visit the News Hub News ReleaseLight — not pain-killing drugs — used to activate brain’s opioid receptorsApril 30, 2015 https://biomedradio-media.wustl.edu/embargo/opto-MOR%20.mp3 View Article Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on LinkedIn (Opens in new window) Related