Hunter-gatherer groups like the Hadza are free from chronic diseases such as diabetes and cancer.

“the hadza are fascinating because they are free from chronic disease and that is another reason that originally i believe the work of boardy boyd eaton lauren cordaine rob wolff many of these in paleo space mark system was interesting to people because here is a time capsule here is a window which you and i were able to step through here is a doorway to the past and what we find in the past at least in the the anthropology or the ethnography or the clinical epidemiology or at least the clinical uh evaluation of these people these hunter-gatherer groups is that they're they're free from chronic disease diabetes is non-existent in the hadza obesity um in the men is non-existent there was only one woman that might even be considered to be obese and she had spent a lot of time with the missionaries and was eating many more westernized foods than the rest of the women and the men and from my you know reading of frank marlow's book about the haza um again he did a phd thesis about them and spent a lot of time with them over the course of many years cancer was unheard of as far as he could tell”