As countries around the world face the problem of population aging, they find their tax revenues and what they can spend on elderly support in decline. Some countries, such as Japan, South Korea, and Singapore, have invested considerable sums of money on a variety of novel medical devices, robotics, and other gadgets to assist the elderly in their sunset years. Others, such as Austria and the Netherlands, have created specialized services for the elderly, among them dementia-friendly villages decorated with items and music from the 1950s and 1950s to help residents feel at home. Meanwhile, Hong Kong, Taiwan, and India passed legislation to incentivize people to provide more financial support for their elders. In the United States, the sheer number of baby boomers can put a strain on Medicare. According to the American Medical Student Association, the population of individuals over the age of 65 will increase by 73 percent between 2010 and 2030, meaning one in five Americans will be a senior citizen.