Health insurance is crucial for several reasons. Primarily, it protects you financially in the event of unexpected, high medical costs. Without insurance, treatments for sudden illnesses or accidents can be overwhelmingly expensive, potentially leading to debt or even bankruptcy. Health insurance plans also promote preventive care by covering routine check-ups and screenings, which can detect health issues early when they're more treatable. Access to regular healthcare improves overall health outcomes, reducing the likelihood of severe illnesses that result in higher healthcare costs and lost income from inability to work.