Most players dislike fast-agers, as these creatures are called, as in addition to their shortened lifespan, they tend to kiss-pop a lot and reproduce quickly. However, for this very reason, breed developers will often test their genomes by temporarily making them fast-agers to check for other defects before changing the aging gene back to normal for release.
If you have a tribe of unwanted fast-agers, you may wish to download the Norn of Infertility agent, which regularly injects the fast-ager and immortal norns with fertility decreasing chemicals. The Fast Ager Trap agent exports and labels norns that have aged too quickly. Norn of Knowing will simply mark fast-agers.
Fast-aging is not to be confused with force-aging.