Board Thread:Off Topic/@comment-3965075-20170602225213/@comment-25936766-20170624200720

First of all.....

Now: Personal height can be over-and under-estimated, both in the actual numbers and in how one feels regarding their own height. Age, gender, region, among other things, can affect one's own perception of their own height.

There can also be big height gaps between regions within a country. So the average height in a nation can be different from the average height in a region within it.