Opioid overdoses have become the leading cause of death of Americans under age 50, and researchers say social isolation, economic distress, and fraying human ties can increase the physical and emotional pain that drives opioid abuse. A recent study published in The Journal of Health Economics reported that for every one percent increase in unemployment, the opioid overdose death rate in the U.S. rose by nearly four percent.  Researchers from Harvard University and Baylor College of Medicine found that U.S. counties with the lowest social [...]