Cancer increases with age, but also with smoking, drinking, pollution, bad diet, obesity, lack of exercise, and exposure to viruses. I wouldn’t be surprised if

Cancer increases with age, but also with smoking, drinking, pollution, bad diet, obesity, lack of exercise, and exposure to viruses. I wouldn’t be surprised if people living in a tribal society had lower cancer rates even if you corrected for age. On the other hand, if they did get cancer, survival rates would be much lower.