What helped me a great deal was prostrate surgery that allows my kidneys and bladder to function properly. Doctors look at BHP as an isolated condition and fail to realize that it can strangle the urethra and hinder kidney function. Prior to the operation I could barely consume 16 ounces of water each day and now I consume at least 64 ounces. My blood is thinner and circulation is better as a result.
I am also conscious of the need to take supplements for my diet. As one gets older our body is less able to absorb critical nutrients and supplementation is needed for the "foods" we consume. Only testing of the blood is going to provide useful information. For example I need 7 times the RDA to have a vitamin D blood serum level that fall in the "normal" range.
I have started doing free weight training as bicycling alone is not enough for me to be physically fit. The nice thing is that I get cardio benefits as well with weight training.