the.com/regeneration

The body's way of saying this wound is temporary, your scar is forever.

means The process of regrowing or renewing damaged tissue, cells, or structures — or more broadly, being restored to a better or earlier state.

from Built from Latin re- ('again') plus generare ('to beget, produce'), the root behind 'generate.' Genus-related words all trace back to a Proto-Indo-European root about birth and kin, so regeneration is literally 'being begotten again' — a second birth grafted onto the first.

champion
axolotls regrow limbs, spines, even brain tissue
human limit
liver regrows itself, fingertips sometimes, not legs
cost
scar tissue trades flexibility for speed of repair
research frontier
scientists study salamanders to unlock human organ regrowth
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