> Aging has not been a priority yet, because the vast majority of people die of something else (infections, heart attacks, cancer, etc) before they die of the p

> Aging has not been a priority yet, because the vast majority of people die of something else (infections, heart attacks, cancer, etc) before they die of the problems specific to extreme old age. Eh, depends what we mean by "age". My grandma's doctors were quite frightened when she slipped over in the shower -- she broke her leg! And that was just in her 80s! Seems like a degrading resilience and healing ability against injury over time should qualify as a substantial "background problem" negatively impacting health among most adults.