Health insurance is a type of coverage that helps individuals or groups pay for medical expenses by spreading the risk across a pool of insured individuals. It can provide coverage for a range of medical services, including doctor visits, hospital stays, prescription medications, and preventive care. Health insurance policies can vary in terms of coverage, costs, and restrictions, and are typically obtained through private insurance companies, government programs, or employer-sponsored plans. The goal of health insurance is to help individuals and families access affordable healthcare and protect them from the financial burden of unexpected medical expenses.