Didn primitive people live only 30 years, and have lots of health problems?
Non-civilized people observed in historical times tend to be healthier than civilized people, and quite long-lived. As for prehistoric people, we can only look at their skeletons. Here’s what Jared Diamond wrote in The Worst Mistake in the History of the Human Race: At Dickson Mounds, located near the confluence of the Spoon and Illinois rivers, archaeologists have excavated some 800 skeletons that paint a picture of the health changes that occurred when a hunter-gatherer culture gave way to intensive maize farming around AD 1150… Compared to the hunter-gatherers who preceded them, the farmers had a nearly 50 percent increase in [tooth] enamel defects indicative of malnutrition, a fourfold increase in iron-deficiency anemia (evidenced by a bone condition called porotic hyperostosis), a threefold rise in bone lesions reflecting infectious disease in general, and an increase in degenerative conditions of the spine, probably reflecting a lot of hard physical labor.
