A recent study reported that people who gained health insurance coverage through Oregon’s Medicaid program experienced better access to care, increased detection of depression and diabetes, and reduced out-of-pocket costs. Yet blood pressure control, cholesterol levels, and blood sugar levels did not significantly improve. While some argue these findings suggest insurance coverage may not lead to better health, The Commonwealth Fund’s David Blumenthal, M.D., and Sara Collins, Ph.D., remind us in their new blog post that previous research leaves little doubt about the beneficial health effects of insurance coverage over time.