Pain is a huge medical problem. According to a new report from the Institute of Medicine, chronic pain costs the U.S. more than $600 billion every year in medical bills and lost productivity. Back pain alone consumes nearly $90 billion in health-care expenses, roughly equivalent to what’s spent on cancer.
Despite the increasing prevalence of chronic pain—nearly one in three Americans suffers from it—medical progress has been slow and halting. This is an epidemic we don’t know how to treat. For the most part, doctors still rely on over-the-counter medications and opioid drugs, such as OxyContin and…