One of the concerns about the healthcare system of Japan is the fast population aging. One-third of the total healthcare cost is using for the elderly. Healthcare spending is relating the fast population aging because of longer hospital stay, end-of-life care, and the change of health insurance plan. The more population aging happens, the more people will stay in a hospital, then the cost of healthcare increases. The population aging also boosts the amount of end-of-life care resulting in increased healthcare spending. The change in the health insurance plan is also contributed to the problem. When retiring employees shift the health insurance from Employee's Health Insurance to Health Insurance for the elderly, the local healthcare expenditures will increase since Health Insurance for the elderly is authorized by a public organization.