This article explores the average height of Japanese people, which has increased significantly over the past century. Factors such as improved nutrition, higher life expectancy, and genetics have contributed to the taller population. Compared to other developed countries, Japan has one of the tallest populations, while they are still slightly shorter than some developing nations. Diet has been a major factor in increasing heights in Japan historically, while genetics can also play a role in determining height. Cultural norms may also influence heights since taller individuals tend to receive more respect than those who are shorter.