Homeostasis and “Root Causes” in Aging - LessWrong
Let’s start with a stylized fact: almost every cell type in the human body is removed and replaced on a regular basis. The frequency of this turnover ranges from a few days (for many immune cells and…
x Homeostasis and “Root Causes” in Aging — LessWrong Gears of Aging Aging Gears-Level World Modeling Techniques World Modeling Frontpage 87 Homeostasis and “Root Causes” in Aging by johnswentworth 5th Jan 2020 4 min read 25 87 Let’s start with a stylized fact: almost every cell type in the human body is removed and replaced on a regular basis. The frequency of this turnover ranges from a few days (for many immune cells and cells in the gastrointestinal lining) to ten years (for fat, heart, and skeleton cells). Only a handful of tissues are believed to be non-renewing in humans - e.g. eggs, neu
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