Where Do the World’s Tallest and Shortest People Live?

They found, for instance, that South Korean women and Iranian men showed the largest increases in average height over the past 100 years, with South Korean women gaining an average of 8 inches (20.2 cm) between 1916 and 2014, and Iranian men growing an average of 6.5 inches (16.5 centimeters) taller. Men and women in the United States also experienced a growth spurt, but to a lesser degree. In 1914, U.S. men were the third tallest in the world, and U.S. women were the fourth tallest.