A people's History: When the world Began part 2

After I saw this video, what I found interesting is that how did the Inuit survive all the ice age. If I was at their situation, I will probably will  not survive the ice age. I think that man and women role it is to complicate to go hunting, or take care of the children, and their house because of the snow. To do all the things that the Inuit does, they will need to have many of energy.