Looking at the average height measurements for infantry soldiers from the Napoleonic wars through to the Vietnam conflict is a really quite startling comparison over time, which is put down to improved diet, apparently. Also in reverse, echoing his provisional remarks about IQ test results. <br>It appears that we (north american/european) had a kind of peak from the 50’s through to the 70’s. <br>Interesting…just the kind of thing extremist politicians/philosophers love to mis-interpret.