Ok, I'm 56. Ride a little every day (10-30 miles), a lot on most weekends (60-150 miles). I feel just fine. No arthritis to my knowledge, no back or knee pain, no seat fatigue. I ride a road bike. I had to correct my LBS when they set it up for me. They assumed I'd want a non-aggressive, upright setup. I like to be tucked when riding. On those longer rides, my average never exceeds 14 mph, no matter what I do (that's my overall average including stop signs, lights, etc.).
On shorter rides, I can get up to 16 or 17 mph average, never much more (I'm always intrigued when I read about riders averaging over 20 mph - how do they do it).
Here in SE PE where I ride, we have (I think) a nice mix of flat vs. hilly riding. On any long ride, you'll have an opportunity to tackle some nice climbs, plenty of time to just cruise along rolling terrain.
Anyhow, I just read that piece about the 92-year old who continues his riding. For the life of me (really!), I cannot imagine myself getting to the state where I won't be able to ride. My work sometimes takes me into assisted care facilities where I see many a soul younger than 92 by a wide margin sitting around, vegetating, barely able to hold the head up. I don't want that to be me, and, to the extent I can do anything to avoid arriving at old age in that condition, try to live my life in a manner that should prolong my mobility.
OTOH, when I read about that fine old gentleman, I wonder if his lifestyle really contributed to his long lasting well-being, or if it's mere just luck.
We don't have any video of him. I've seen old guys out on bikes who practically need a shove to get going. For all I know, he may be just that frail. OTOH, I saw a piece on TV where they showed this fit guy lifting weights. He was wearing only boxing (not boxer) shorts. You wouldn't have mistaken him for the governor of California when he was in his prime, but I easily mistook him for a fit, trim guy in his forties. The reason for the TV piece was that the guy was 72 years old. I'm just not into gyms, and I have a set of weights, but am not into using them, either. But I love to ride. Rare is the day when I am too slovenly to hop on one of my bikes and go for a spin.
Anyone who contributes to this thread will, most likely, be able to offer only a hypothetical, highly subjective response, but my question still stands. Will cycling help keep me from becoming gradually more and more frail in my waning years? I'd just as soon surprise everyone when my time comes by just going to sleep or dropping over and out from a life lived with never ending vigor and mobility. I'm not into watching my grandkids (please, Lord, let there be grand kids!!) grow into adulthood from a wheel chair. I hate that song that permeates the TV commercials ("you made me love you, I didn't want to do it") as those "insurance-ambulance chasers" promise that they will restore your mobility by providing you an electric wheel chair at "no cost."
So, what do you think? Will cycling keep me healthy?