Well, I can't imagine the stress these people are under and how rapidly it would age them if allowed to proceed normally.

For example, take a look at Obama at the end of his presidency, then go back and look at him at the beginning. It's hard to believe he looked that young. I think it was Chappelle who joked that it looked like he slept in a turkey smoker.

Same thing with GWB. He was a strapping young go-getter when he was campaigning. Made all kinds of sense too, BTW, it's surreal to watch old campaign videos. And remember, both those guys were just placeholders standing around and reading from teleprompters, not under any real responsibility.

Now you have to compensate for the whole clone/body double/CGI thing, which throws off all calibration of "normal aging".