The Atlantic reports: “Several researchers now believe depression, one of the most common medical diagnoses in the U.S., might be one underlying cause that’s driving some patients to seek out prescription opioids and to use them improperly. People with depression show abnormalities in the body’s release of its own, endogenous, opioid chemicals. Depression tends to exacerbate pain—it makes chronic pain last longer and hurts the recovery process after surgery.” Read the rest of the story here.