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taylorvich writes:

Death is the one certainty in life, a pioneering analysis of blood from one of the world's oldest and healthiest women has given clues to why it happens.

What they found suggests, as we could perhaps expect, that our lifespan might ultimately be limited by the capacity for stem cells to keep replenishing tissues day in day out. Once the stem cells reach a state of exhaustion that imposes a limit on their own lifespan, they themselves gradually die out and steadily diminish the body's capacity to keep regenerating vital tissues and cells, such as blood.

1. "taylorvich" - https://soylentnews.org/~taylorvich
2. "a pioneering analysis" - http://www.newscientist.com/article/dn25458-blood-of-worlds-oldest-woman-hints-at-limits-of-life.html

printed from SoylentNews, Blood Stem Cells and Lifespan on 2024-04-19 05:20:42