Wow,Thanks for all the responses.....that's scary. I don't smoke, but I did force my voice into a higher tenor than it is 'sposed to be in.
These days I try to sing more in my natural range and practice better technique. This is even better incentive though!
I can't sing as high as I could in the past, although I sing better in a lower range now.
Guess I'll be *real* careful from now on....
Steve