Its a tough moral problem. Does the government and private insurance stop paying for heart transplants and life-prolonging procedures after the age of 75? I w

Its a tough moral problem. Does the government and private insurance stop paying for heart transplants and life-prolonging procedures after the age of 75? I wonder what percentage of medicare/insurance payments goes towards prolonging life into the 80s and 90s? I can't imagine being a doctor and having to make that decision, or break the news to a family that they're not allowed to save a life due to old age of the patient...