Medicare is a federal health insurance program primarily designed for individuals aged 65 and older, though it also serves younger individuals with disabilities and specific health conditions. Established in 1965, the program offers various coverage options including Medicare Part A, which covers hospital stays and inpatient care, and Medicare Part B, which focuses on outpatient services and preventive care. Additionally, beneficiaries can opt for Medicare Part C, or Medicare Advantage, which bundles various services through private insurance companies, and Medicare Part D, which provides prescription drug coverage. Navigating Medicare can be complex, as it involves understanding different plans and their coverage details, but it is an essential resource for many Americans seeking affordable healthcare options.