Originally Posted by StanSeven
And that's also the bad thing. High impact exercise keeps bones dense.
VNA
Actually that is incorrect:
High impact exercise is very hard on the joints not the bones and stress fractures may increase with age!
However physical exercise with some intensity where the heart gets pumping is excellent for our old bones. Good blood circulation will bring the necessary ingredients to maintain strong bone density. (of course good nutrition as well)
Actually, it is weight bearing exercise or activities that are good for the bones. Cycling really does not do much for bone strength.
I always wear a helmet. A crash last summer produced 21 stitches and the doc cleaning out dirt and fine gravel that was packed in my ear. I was thankful for my helmet!
We ride on roads exclusively. MUP's are too dangerous with all the old people on them

Really, we just don't have very many where we live. However, I feel the MUP's I have ridden on are more hazardous than the roads. I'd rather cope with motor vehicles that are
supposed to follow rules of the road; than deal with pedestrians, mothers with baby strollers, inline skaters, racer want-to- be cyclists, and other cyclist that don't know or follow common sense rules.