Turning Down the Volume on Chronic Pain: Scientists Discover the Brain's 'Override Switch'

But for approximately 50 million people in the United States, that alarm system gets stuck 'ON'. This is the reality of chronic pain, where the signal persists for months or years, long after any physical injury has healed. As neuroscientist J. Nicholas Betley of the University of Pennsylvania explains, chronic pain isn't just an injury that won't heal; "it's a brain input that's become sensitized and hyperactive."Now, groundbreaking research is shedding light on how to quiet this constant noise