Human lifespan ends from sin against the Torah (i AM Messiah Ben David, and am biologically immortal). So a deficiency in RIGHTEOUSNESS, perhaps.
Sin [in men, particularly] produces genetic alterations that then pass to women and pass to children to the 3rd, and the 4th generation, whereas 1,000 generations are blessed from the righteousness of the Fathers.
So human biology degrades over 3–4 generations, if that makes sense.
And we have been repeating that same pattern since the fall of Adam.
Adam (a perfect man) had no sin, and therefore had no death. When he partook in the forbidden fruit (eve was allowed, as sin, in particular, is for men) a thing called “The Mathematical Devourer” was allowed into his biology, which eats away at pure genetics and causes exponential degregation, which if it were not for biological evolution – we would ALREADY BE WIPED OUT.
If you want to live longer – obey the Torah. Period. There is also some plant ingredients in the Torah that will make you biologically immortal, in the Temple Ceremony, but to activate it has to be mixed with a seed in the Koran that wards off evil. THAT is all I will say boss.