Got to love the anonymity of the forum!
I'm giving up because I was having difficulty achieving and maintaining an erection. The Doc said giving up smoking would be the best thing I could do for this, although it might take a while to see a result.
Now I'm only (!!) 60 and not ready to give up on sex just yet - and neither is my wife.
Here's hoping it will have the desired effect.
And for all you young men out there who are currently quitting, there's another good reason for you. Don't wait till you're 60 as well!