A study by Yale School of Public Health researchers found that a single-payer universal health care system could cover every American, save over 100,000 lives a year, and cost $1 trillion less than the current system. The study modeled a national public insurance program like the one proposed in the Medicare for All Act, using 2024 spending, insurance coverage, and mortality data. The researchers identified five major sources of savings, including lower pharmaceutical prices and reduced administrative overhead. The study's findings suggest that universal health care could have significant economic and health benefits.