Andrew,

I figure that my nuts had shut down five years or so before things got foggy. I don't remember having problems with concentration prior to say 1998 - 99. That might be period when they had quit working completely. It could be that my T level of 97 that I had in Jan of 2001 was the result of T produced by other endocrine glands.

Jim

I'm also sure now that my hormones were low for perhaps 2 - 3 years. Just kept getting more and more tired. If I may address the fog issue .... To me it was more an inability to concentrate and lack of motivation. It took every last bit of will power I had to finally get a product into production at my work place. I then took a month of medical leave to get myself functional again. The T replacement has my brain working again, although not all the physical things have totally reversed. It may take a while yet.