Well brother, it's like this; Do not become confused by thinking that it was just weather conditions alone. That would be a mistake. What you must account for are multiple conditions. Example; the Eskimos may be in extreme conditions by our standards of weather, but if one does some serious research on the land mass called Europe or the globe, one will find that the earth went through some type of axis shift that drastically changed the condition of Europe. Not only Europe but Africa also.
Where we now see all that sand around the pyramids and the sphinx is not as it always was. That whole area was plush with green grass and the whole nine. Now let me get back to Europe for a minute. Once this drastic shift occurred that also changed the weather sort of like the movie "day after tomorrow"...the next thing that's going to happen is that your diet is going to become deficient also. Now you suddenly can't even get the needed nutrients, vitamins, proteins or minerals that will allow your system to maintain or function as it is supposed to.
Not only did you suddenly become deficient on that level, but now you are actually degenerating just as a means to survive!! Where you were once eating vegetables and fruit and maybe some meat, now there is NONE !! What are you eating brother? Feces? your family? the weakest of the clan or group? Now if i couple in those factors with the factors of inbreeding and some other things, you can easily see cellular degeneration and a whole lot of things taking place....something an Eskimo would never go through. Why? cause they are in the position to get fish, seal, bear and other things. You...you was on dry land up in Europe when this change occurred...you can't even get a fish !
I could go on and on with this to take you from the physical to the psychological to the spiritual of the issue with each passing generation, but I just wanted to lay something here to let you think about this a little more than you have.
I have seen maps of the south pole drawn by our ancestors that revealed the entire shape of that land mass !!! The white man didn't believe it because to his knowledge there was always ice there. So they took a computer down there and shot sound waves into the ice...and wherever there was land the computer would draw it out on the screen. Sure enough, they saw what our ancient ancestors has already drawn on maps.