Healthcare in the US is delivered through a combination of private providers and public programs. The US is the only high‑income country without universal healthcare, and coverage varies widely by income, employment, age, and state. The US healthcare system is one of the most expensive & complex globally, with significant strengths in innovation but persistent challenges in equity, affordability, and outcomes. It features world‑leading medical research & innovation, including rapid development of new drugs and technologies, and high-quality tertiary care and a strong specialist workforce. But coverage is incomplete, as about 10% of adults are uninsured. Health outcomes are poor relative to other wealthy nations, including higher infant mortality and lower life expectancy. And there are large disparities by race, income, and geography. The system has a high financial burden even for insured individuals, due to deductibles & copays.