Kynthia, like all other Argosians, had a lifespan of approximately 100 days. Because of the short lifespan, she (along with the other Argosians) blissfully celebrate everyday and be thankful to the "creator" (Pelops) for their one hundred days of living. However, their way of life was brought on because Pelops, a Goa'uld, had long ago set aside the people on Argos as "lab rats" (or "The Chosen" as the Argosians called it) to see how Humans would evolve by accelerating their growth via Nanites, thus shortening the Argosians' lifespans to approximately 100 days, or one 250th of the usual human lifespan.