The difference was 3.6cm in the study that measured 10 more years 30-80. And 5cm in the study that measured 10 fewer years 40-80.
The studies were conducted over different time periods when average nutrition changed, and demographics changed. And the study demographics just vary by location.
Height loss with age is incredibly well documented. Here’s a few more studies.
This is just basic medical textbook information. No one in the world is arguing that this phenomenon doesn’t exist.
