Commenting on why humans might have two different sets of nerves, the International Herald Tribune states: “The slow fibers function from the earliest hours of life, perhaps even in the womb, while the fast fibers develop slowly after birth.
Sewaktu mengomentari mengapa manusia mungkin mempunyai dua pasang saraf yang berbeda, International Herald Tribune menyatakan, ” Serat lambat ini berfungsi sejak jam - jam paling awal kehidupan, bahkan mungkin dalam kandungan, seraya serat - cepat perlahan - lahan berkembang setelah kelahiran.