You already know we’re getting heavier. Rising obesity rates are as American as apple pie — a cliché that seems freshly relevant in this context. But did you know we’re also getting shorter? We didn’t! At least, not until we tried to use the National Health Interview Survey from the Centers for Disease Control and Prevention to figure out which professions boast the tallest workers. We split the rankings by gender, so our analysis didn’t simply lead us to the most male-dominated jobs, such as mechanics and engineers. Among women, the tallest are public officials — a category that includes top executives as well as legislators — and a broad category that includes writers, artists, entertainers and athletes. Among men, the tallest are, again, public officials, who share that distinction with sales representatives. This made us wonder: Heights are self-reported in this survey, and the tallest professions are known for their spin skills. So, could the great American height slump somehow be fueled by Americans growing more honest about their stature? Well, no. We saw similar results in the National Health and Nutrition Examination Survey, a separate, gold-standard CDC data set that deputizes trained personnel to measure people’s height, weight and other dimensions according to a 91-page-manual. If anything, that source shows an even sharper decline in America’s height — though we’re still talking about fractions of an inch. Height shifts slowly, especially at the national level. Similarly, a truly immense analysis of expert measurements in 200 countries and territories found that height had slipped among 19-year-old Americans in the late 1990s and 2000s. Nineteen-year-old American men were the 36th-tallest globally in 1985, but by 2019, they were 47th. Women the same age fell from 38th to 58th, behind China and Lebanon. Also, we’re not as bad at guessing our measurements as you might think. In a 2020 analysis, American Cancer Society researchers asked more than 2,600 Americans to state their height and weight, and then — without warning — weighed and measured them. Their findings show that a large majority of us know our height within two inches, and our weight within 10-plus pounds. (Though we all tend to err on the svelte side.)If anything, self-reported heights underestimate our national shortening, according to a separate U. S. comparison of self-reported and expert-measured heights. “Data showed that overreporting of height increased over time in both men and women,” the report’s authors write, “while underreporting of weight increased in men but not women.”And there may be a perfectly reasonable explanation why public officials and sales representatives are so tall: bias. We prefer towering politicians — we last picked a president of below-average height for his era, William McKinley, in 1896 — and studies of people such as hiring managers often find that they believe a taller salesman, for example, will impress customers.


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