Only about one in every four million kids has this disease, and in a simple way, what happens is, because of a mutation in a particular gene, a protein is made that's toxic to the cell at about seven times the normal rate.
約400万人に１人の子供がこの病気にかかりますが 要は この病気にかかると 特定の遺伝子の変異のために 細胞に有害なタンパク質がつくられます そのせいで 通常の７倍の速さで 老化が進行します