Health insurance can play a crucial role in reducing financial stress for cancer patients. Comprehensive health insurance plans can cover a significant portion of medical expenses, including treatments, hospital stays, and medication. Patients should thoroughly understand their insurance coverage, including co-pays, deductibles, and out-of-pocket maximums, to better anticipate their financial responsibilities. It's also beneficial to work with an insurance case manager who can help navigate complex claims and ensure that all eligible expenses are covered.