Free-radical damage in many body tissues can be dealt with by replacing compromised cells with new ones, produced by cell division; however, most brain regions do not produce significant numbers of new brain cells after birth. (The hippocampus, involved i
Free-radical damage in many body tissues can be dealt with by replacing compromised cells with new ones, produced by cell division; however, most brain regions do not produce significant numbers of new brain cells after birth. (The hippocampus, involved i
自由基在身体许多组织所造成的伤害，可以藉著细胞分裂产生新细胞，来取代受伤的细胞；但是脑中大多数的区域在出生之后，就无法制造足够多的新生脑细胞（参与学习与记忆的海马是个重要例外）。