How can Captain America become old in Endgame when he is injected with soldier serum ?

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    That other question is not a duplicate because its talking about timeline inconsistencies regarding cap. This question simply asks about Caps Aging rate. As a super soldier he ages really slow, say half the human rate. Assuming he's a 100 years in the last scene, one might have expected him to look say .. 50. He looks a lot older. – MovieMe Apr 27 '19 at 18:31
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    MovieMe is correct about this not being a duplicate of the question linked by @Paulie_D. It should be reopened. – Herohtar Apr 27 '19 at 22:46
  • There's no indication that the Super Soldier serum slows aging. If you have an MCU source for this please provide it. – Paulie_D Apr 28 '19 at 11:25
  • While that may be a possible answer, the question still remains non-duplicate. – MovieMe May 3 '19 at 13:57