Thank you, Sir. I have enjoyed nearly 65 years of almost perfect health, so this aging thing is sort of naively unexpected for me. I have read much about CAA over the past 6 weeks, and there have been some allusions to the possibility that CAA may in some way be related to autoimmune diseases. Both my parents had severe, severe rheumatoid arthritis, the complications of which killed them both. Rheumatoid arthritis is an autoimmune disease, so there may be some kind of correlation. Or not. Who knows? Anyway, thank you for your kind welcome.