Globally, the highest percentage of the population age 65 and older is found in the East, specifically in countries such as Japan, South Korea, and China. This region has a rapidly aging population due to factors such as low birth rates, increased life expectancy, and improved healthcare. In Japan, for example, the percentage of the population aged 65 and older is currently over 28%, which is the highest in the world. This demographic trend presents significant challenges for governments and societies, including issues related to healthcare, retirement systems, and the labor force.