Exercise and Aging

Exercise is good for you…. Right? Everyone knows that. But is there such a thing as too much exercise, especially as we age?
The more I read on the subject, coupled with actual changes I am experiencing, the more I am convinced that you can “Over” exercise.
Especially when you really start getting up there in years. In less than two months I will be 85. I am both physically and mentally fit. For the last five years I have maintained my weight at 150 lb. (68 kg.) (My racing weight as a teenager.)
The only medication I take is a low dose for my Parkinson's, but I do take a lot of supplements. I still hold on to my mistrust of Doctors, Big Pharma, the Food Industry, and Government of course, only because they allow the aforementioned to operate with impunity.
I like and respect my own doctor, but trust him? Hell no. I go in for an annual physical, when he does blood and urine tests. But if he prescribes any medication, I research it thoroughly, and invariably find the side effects of said medication is far worse that the condition it is treating.
One has to be their own health advocate. It is my body, so only I get to say what goes in it, and what I do to it. The great thing today is all the information I need is right there on-line. Yes, there is a lot of miss-information too, but one must be selective in what one reads. But on reading several articles saying the same thing, one has to accept there is some truth to it.
In recent years, one of the things I have learned about is Free Radicals, and in particular Oxygen Free Radicals. With my limited high school science knowledge, I will try to explain in simple terms. Atoms are made up of a Nucleus of Protons and Neutrons, and electrons orbit around the Nucleus.
An Oxygen atom has two electrons orbiting the nucleus, and six more electrons orbiting outside that. A Free Radical atom has one or more of these electrons missing. It then “Steals” an electron from the atom next to it, which in turn steals one from its neighbor, setting off a chain-reaction of wholesale electron thievery that can actually cause cell damage.
Free radicals are a natural occurrence, and the body has a defense mechanism in the form of antitoxins that repair the damage done by free radicals. Our bodies produce these antitoxins using nutrients from the food we eat.
The problem is as we age, we stop producing these antitoxins and the free radicals are left to ravage our bodies and our brains. It is the reason we become old, get dementia or become more susceptible to cancer and other diseases.
Glutathione is an antitoxin the body makes naturally and is known as “The mother of all antitoxins.” This is where the supplements come in, and it is here I wish it were it that simple. Glutathione taken orally, rarely makes it past the digestive system. However, the body makes glutathione from amino acids, Cysteine, Glutamine, and Glycine. By taking these supplements, the goal is to help my body produce its own Glutathione.
When we exercise to extremes, especially endurance exercise, which cycling can be if you ride far enough and hard enough, we actually produce free radicals. This is not surprising when you consider intense exercise means we are taking in 10 to 20 times more oxygen than we would while resting.
Our bodies are processing all that extra oxygen as it goes from our lungs to our blood-stream, to our muscles. I ask myself, is it any wonder a few little electrons get lost along the way? A young fit athlete can handle this, even a fit fifty- or sixty-year-old might be okay. But when we get to our seventies and eighties, time starts to catch up fast. I for one have come to respect my limitations.
I ride a moderate pace around 15 mph. pedal a low gear at around 72 rpm, and never ride to the point of exhaustion, or even to the point of being out of breath. Apparently, the worst thing an aging athlete can do is to exercise infrequently, then exercise hard. Weekend Warriors beware. Slow down, if you are like me, you have nothing to prove to yourself, or anyone else.
If you Google “Exercise and Free Radicals,” or click here there is much info on this subject.



Goodbye 2020
In the fifteen years I have been writing here on Dave’s Bike Blog, I don’t think I have ever struggled so much to come up with a suitable post, hence the delay. This normally would have been written last Monday.
The problem has been that the subject is pre-determined by the date and traditionally for the last article of the year I must write about my reflections on the outgoing year, and my goals for the New Year. But in a year as disastrous as 2020 how do I do that?
Well, at least we got though it, otherwise I would not be here writing this, and you would not be reading it, so there is a positive thought to begin. What is the big deal about New Year’s Eve anyway? It is just a changing number on a calendar or clock. I believe that time is an illusion, synchronized by mankind to bring some kind of order to this chaotic lifestyle that we have brought upon ourselves.
I find it interesting that the design and engineering methods that clock making brought about, started the Industrial Revolution. I often wonder if something that started as man’s desire to harness time, will end with some form of Artificial Intelligence that can nun this whole shit show in conjunction with Nature. Because it is clear to me that Human Intelligence is diminishing and cannot continue to run things as they are.
2020 was not a particularly good year, but one that will be remembered for sure. Many lessons learned, not only about my fellow man, of traits both good and bad, but lessons about myself too.
I am not saying that this book changed anything in my life, but it did make me realize how my life had changed in the years I have been engaged in writing here.
What has changed is my thinking, my point of view. What a good thing this is, for if one does not change their way of thinking, they become stagnant and do not continue to grow or move forward.
The book titled, “Bike Inspired Creativity. Volume 2.” is a collection of different bicycles, and here is where my thinking has changed. Five or ten years ago I would not have given this book a second look, I would have dismissed it as a “Waste of time.” I have been critical here of recumbent bikes, mountain bikes, anything that did not follow the lines of a pure racing bike was of little or no interest to me.
I was never fond of bikes that were pure art objects, and even now I will go as far as saying I feel if one is building a bicycle that is meant to be ridden then it needs to be built straight and accurate. If something is pure art with no other purpose than to be looked at, it needs to be obvious that it is akin to a piece of sculpture, not a practical bike to ride.
One such bike is one made entirely of wood, not just the frame, but the chain wheel, cranks, pedals and even the chain. The bike was actually ridden on a velodrome and apparently holds the world record for an all-wooden bike. One can appreciate and admire the woodworking skills and the knowledge of different wood properties that went into the building of such a bike.
Here is a practical folding bike with full size wheels. https://www.kruschhausen-cycles.de/
Here is another with full size wheels where not only does the frame fold, but the wheels too. https://www.tuckbike.com/
I highly recommend this book; it will entertain you for hours. Learn more about the book https://velosophe.be/livre Or buy it here, postage is FREE https://velosophe.ecwid.com