Many species in the imperium have a standardized genetic restructuring that “accelerates” certain things. This often comes at the prices of a longer life-span. Death is something few fear any more, given revelations of radiant Essence, The House of the Dead, an understanding of Apex Reincarnation and science. Those characts seeking rejuvination treatments, or a longer life span (and that can afford it), do.
Although minor, they have drastically improved the quality of life for all species sharing in the “Imperium Accelerata“.
D20
+1 all saves vs. disease, poison; +1 Accelerated Healing