I don't think it makes sense for a humanoid species, but silicon based, perhaps? Iain M Banks' The Algebraist [0] has a near immortal species called Dwellers th

I don't think it makes sense for a humanoid species, but silicon based, perhaps? Iain M Banks' The Algebraist [0] has a near immortal species called Dwellers that manage it somehow :) [0] https://en.wikipedia.org/wiki/The_Algebraist#:~:text=Dwellers%20are%20one%20of%20the,the%20foundation%20of%20the%20Mercatoria https://en.wikipedia.org/wiki/The_Algebraist#:~:text=Dweller....