  == sexual dimorphism ==  I am interested in the difference in height between men and women.  While there are some statistics in the world chart, I would like to see more info on this subject.  Does the difference between them vary- by country, race, or over historical time? I believe it does change with age as women lose more height with age than men- is that documented? Do the taller people vary more or less?  Is there anything known about how it changes with other factors, such as nutrition?  Thanks in advance for any data on this.    