Biological Explanations for Aging Stopping in a 100% Human Being

So there's this man that was born 1,000 years ago, but today he's still living and he's (biologically) 28 years old. He just stopped aging at that age.

He is not immortal. He has been hurt in wars. He bleeds and hurts like everybody. He would die if he just jumps off a building, but he can't age, and he's never been sick (not even a fever). He also preserves the sensory apparatus (sight, hearing, touch, etc.), the strength and the memory of a 28 year old.

I'm looking for answers to how this may actually happen, non science-fiction or alienated theories. I'm not looking for scientific or technological INTERVENTION in any way, since there was none of those when he was born. I'm looking for 100% natural biological explanation for this planet that can apply to ancient or medieval times; mutation, junk DNA, or anything that CAN make it possible, logical and perfectly explainable (even if its too crazy to imagine, as long as it's -humanly possible-).

Also, he could have been born that way (though we'd have to explain why he raised normally til his 28's), or could have had an incident during his raising or when he turned 28.

Also, would there be other biological implications? Like eating or sleeping disorders? Or maybe he wouldn't need to eat or sleep at all? I guess it all depends on the chosen explanation.

posted about 4 years ago

Cesar‭

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