What do you call a demographic that defies logic? A demographic that should, by all rights grow when in fact it is shrinking? I am a Baby Boomer. I encounter men and women of my generation at the store, the bank, the park, and even at my job.  But when I look at my peers, I am usually the only gray-haired lady in sight. 

     Somewhere between the ages of 45 and 50 my hair went gray.  It is neither a steel gray nor the beautiful white of my grandmother.  My hair is…