Dredd has been old since the late 1980s. When he fought Stan Lee, one panel was saying he could have fought better when younger. How old is he now? Late 80s? They say he had a rejuve done and it is no longer a problem. The thing is, technology now exists to make people 20 years old. So why don't they? Here is a recent published article, turning cells young again: https://onlinelibrary.wiley.com/doi/10.1111/acel.70751