Definitely! - Same with Rome - and we are heading that direction by allowing our system to be infilitrated and torn apart from within.
My time in Iraq 2003- 2008 - I was able to go to alot of historical sites (becuase we had the guns) and was able to talk to alot of the locals (usually the older males - like grandpa’s) and they would talk about all sorts of things as they occurred...the youth though - didn’t care.
Although humanbeings aren't designed for "specific climates" there are limits, and it's only indoor life that tricks us into thinking they no longer apply.