The 12 Steps Revisited

THEY used to say, in the days before every high school kid was equipped with enough scientific information to refute it, that the human body had a complete replacement of all its physical materials every seven years. I'm wondering if something similar happens to the mind. Seven years ago, in my seventh year of sobriety, I wrote for these pages a little series called "Twelve Steps and the Older Member." The idea was to discuss whether there was any difference between the application of the Steps to one's life in the beginning, and later.