https://www.cell.com/cell/fulltext/S0092-8674(05)00408-3Около 7 лет все (среднее).
(непроверенное саммари с медиума)
Red blood cells have a lifespan of just 70–120 days.
Intestinal cells turn over every 10 years or so — but the epithelial cells (exposed to the inside of the intestine) only last about 5 days, while the other intestinal cells last around 16 years.
Skeletal muscle cells last around 15 years.
An average skin cell only lasts about 14 days before dying.