Interesting take, but I think there is another reason, Malaria. It so devastated Africa that people started evolving resistance to it. That evolution also sho

Interesting take, but I think there is another reason, Malaria. It so devastated Africa that people started evolving resistance to it. That evolution also shortened the life of the "lucky" person who has it. Quote: >Due to the high levels of mortality and morbidity ... has placed the greatest selective pressure on the human genetic factors provide some resistance to it including sickle cell trait From: https://en.wikipedia.org/wiki/Malaria https://en.wikipedia.org/wiki/Malaria Only recently has treatment started to work in Africa, but the damage done is still being felt. Plus the treatment is slow coming from the rich countries.