Hunt prey on the savannah? Be food-insecure? Live to 60 if you're lucky? We need to understand these things, not just assume whatever is (prehistorically) natu

Hunt prey on the savannah? Be food-insecure? Live to 60 if you're lucky? We need to understand these things, not just assume whatever is (prehistorically) natural is healthy. Humans didn't particularly evolve to live places where winter days are as short as they are in much of North America and Europe. We hacked our body by inventing clothing, shelter, and fire (fire/cooking is a huge digestive system hack). Sure, I guess there was a little adaption in skin tone to try to compensate for less Vitamin D, but then we invented supplement vitamins (so people of all skin tones can live healthy lives at high latitudes in winter). Hacking the body is probably what most makes us human, and it should be celebrated.