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3 hr ride without drinking nor eating safe?

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3 hr ride without drinking nor eating safe?

Old 04-02-21, 11:14 AM
  #151  
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Originally Posted by alo View Post
I think this topic could be separated into casual riders who take it relatively easy, and those who push themselves to the maximum. The best approach, is different for each group.
I agree 100%.
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Old 04-04-21, 09:42 AM
  #152  
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Originally Posted by cubewheels View Post
Today, I did a 3 hr ride. Mostly flat. Only few hills with one that is very steep that goes up 600 ft.

Traffic was only moving ~20 mph so I simply paced the traffic.

I did bring food and water with me with intent of consuming them at the of the hill during a brief stop. But I didn't. I wasn't hungry nor thirsty.

I continued the trip back home without touching the water nor food. Still wasn't hungry nor thirsty when I got home.

How safe is it? I wouldn't be bringing water and food if I knew I won't be touching them. They'll just slow me a down a tiny bit with the added weight.

The other cyclists I came across also traveled about the same distance (we were all going to the same destination, otherwise, I'm not part of their group, and riding solo) and got to the same hill but they took a big meal at the top at the restaurant. They were really hungry.
On a 60 mile ride taking 3 hours I’d typically eat a bar and drink 18 fl oz of water/Gatorade in the cooler months and double the liquid in hotter months. If the folks you rode with had to stop for a meal because they were hungry halfway, well, they probably would have been hungry even if they hadn’t ridden.

Btw, some of the responses in this thread are more about measuring than riding.
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Old 04-10-21, 05:21 PM
  #153  
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Mechanistically dry fasting(and hence fat oxidation) can deplete your deuterium levels. Deuterium(which is heavy water) is though to damage complex 5(or atpase) on the mitochondria. There is always a physiologic amount of deuterium in the system. Hence there is always a steady state of baseline mitochondria damage happening. Most people eating processed foods have higher levels of deuterium and hence a higher level of atomic level mitochondrial damage. If you are eating like a prehistoric person, then likely you're deuterium is consistent with normal evolutionary physiology. But if not, intermittent dry fasting can deplete your deuterium levels to improve mitochondrial health.
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Old 04-10-21, 06:55 PM
  #154  
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Originally Posted by burritos View Post
Mechanistically dry fasting(and hence fat oxidation) can deplete your deuterium levels. Deuterium(which is heavy water) is though to damage complex 5(or atpase) on the mitochondria. There is always a physiologic amount of deuterium in the system. Hence there is always a steady state of baseline mitochondria damage happening. Most people eating processed foods have higher levels of deuterium and hence a higher level of atomic level mitochondrial damage. If you are eating like a prehistoric person, then likely you're deuterium is consistent with normal evolutionary physiology. But if not, intermittent dry fasting can deplete your deuterium levels to improve mitochondrial health.
Not. Multicellular organisms on earth has evolved to thrive on the specific amount of deuterium in natural water. Variations both up and down from the historic normal proportion of deuterium in water produce less than optimal results in said organisms. This is exactly what one would expect. Evolution works very, very slowly.

Deuterium doesn't damage anything. It needs to be there and in the level found in ordinary water. This whole deuterium level fad is just the latest thing to fool people and cause more chaos. Ignore it. If the gentle reader would like to dig into this, here is a helpful, though a bit dense link to information about the effects of deuterium levels on various organisms: https://www.evolutamente.it/deuteriu...in-a-5g-world/
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Old 04-10-21, 07:20 PM
  #155  
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Originally Posted by Carbonfiberboy View Post
Not. Multicellular organisms on earth has evolved to thrive on the specific amount of deuterium in natural water. Variations both up and down from the historic normal proportion of deuterium in water produce less than optimal results in said organisms. This is exactly what one would expect. Evolution works very, very slowly.

Deuterium doesn't damage anything. It needs to be there and in the level found in ordinary water. This whole deuterium level fad is just the latest thing to fool people and cause more chaos. Ignore it. If the gentle reader would like to dig into this, here is a helpful, though a bit dense link to information about the effects of deuterium levels on various organisms: https://www.evolutamente.it/deuteriu...in-a-5g-world/
Here's a pub med article with interesting thoughts, but no definitive conclusions:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1808445/

If we consider the very high concentration of water in biological systems, it becomes difficult to neglect the relative amounts of deuterated water and deuterons. It seems likely that deuteronation of ATP synthase and other macromolecules has stochastic biological consequences. The proposed mechanism could shed light on the mechanisms of heavy water toxicity and on certain time dependent pathological processes such as aging. The change in the deuteronation level of purified macromolecules can be measured in physiological/pathological processes by Elemental Analysis coupled with Isotope Ratio Mass Spectrometry (EA-IRMS). Specific deuteronated positions on the molecules can be characterized by NMR spectroscopy studies. The effects of deuteronation, if any, can be delayed or prevented by decreasing the intake of deuterated water or increasing the turnover of organelles and macromolecules by stimulating autophagy-like mechanisms.
I saw your article also. It liken it to the j shape curve of benefits. Too little and too much is bad. There's a sweet spot in between. In the processed food/sedentary world we live in, who really knows? There probably won't be any definitive proof in terms of associating the benefits/harms of modulating deuterium levels and its effect with health benefits. The reason being that all the strategies to reduce deuterium are similar strategies that improve cellular metabolic health(exercise, eating healthy). I try to be open minded. Cell biology systems and mechanism really interest me and access to information today is infinite compared to what I had access 30 years ago. And yes, some information/biases/conclusions can be faulty. But you seem like you're a deuterium expert. So a will defer to your expert opinion.
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Old 04-10-21, 10:11 PM
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Originally Posted by burritos View Post
Here's a pub med article with interesting thoughts, but no definitive conclusions:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1808445/



I saw your article also. It liken it to the j shape curve of benefits. Too little and too much is bad. There's a sweet spot in between. In the processed food/sedentary world we live in, who really knows? There probably won't be any definitive proof in terms of associating the benefits/harms of modulating deuterium levels and its effect with health benefits. The reason being that all the strategies to reduce deuterium are similar strategies that improve cellular metabolic health(exercise, eating healthy). I try to be open minded. Cell biology systems and mechanism really interest me and access to information today is infinite compared to what I had access 30 years ago. And yes, some information/biases/conclusions can be faulty. But you seem like you're a deuterium expert. So a will defer to your expert opinion.
My guess is that this latest food fad/scare was injected into our social media by the FSB for its chaos value.

What never ceases to amaze me is how long 4 billion years is, and how much can happen in such a long time span. Life is complicated.
Your link doesn't raise or address trying to alter one's natural deuterium levels through diet. We do know for sure that drinking lots of heavy water is not good. We're also fairly sure that drinking lots of un-deuteronated water isn't healthy either, but there doesn't seem to have been any research into that. It's probably hard to come by.
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Old 04-10-21, 10:19 PM
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Originally Posted by Carbonfiberboy View Post
My guess is that this latest food fad/scare was injected into our social media by the FSB for its chaos value.

What never ceases to amaze me is how long 4 billion years is, and how much can happen in such a long time span. Life is complicated.
Your link doesn't raise or address trying to alter one's natural deuterium levels through diet. We do know for sure that drinking lots of heavy water is not good. We're also fairly sure that drinking lots of un-deuteronated water isn't healthy either, but there doesn't seem to have been any research into that. It's probably hard to come by.
I don't think it's scary. Why can't it be interesting?
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Old 04-11-21, 09:22 AM
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I think the claim that high deuterium levels in your body's water are constantly damaging your mitochondria is supposed to be scary, and would be if one didn't know anything about it other than that claim. It reminds me of anti-vaxxers, hence my mention of the FSB which was involved with the creation of that subgroup.
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Old 04-11-21, 05:57 PM
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Originally Posted by Carbonfiberboy View Post
I think the claim that high deuterium levels in your body's water are constantly damaging your mitochondria is supposed to be scary, and would be if one didn't know anything about it other than that claim. It reminds me of anti-vaxxers, hence my mention of the FSB which was involved with the creation of that subgroup.
I can see that. Interesting learning points for those immune to boredom. The reality is that the routine process of mitochondrial physiologic conversion of acetyl coa(which is derived from fat and carbohydrate metabolism) into ATP(the cellular energy molecule) produces superoxide anion O2(-). This is a highly reactive reactive molecule that damages proteins, DNA, and cell membranes. We are producing it constantly. Thankfully billions of years ago when mitochondria was endosymbiosed by eukaryotic cells, this union evolved enzymes to neutralize this superoxide anion. Superoxide dismutase converts O2(-) into H202. Catalase coverts H2O2 into H20 and 02. Without this, aerobic metabolism would be incompatible with life.

Thankfully these enzymes(which are intimately linked to mitochondrial structure and function) acts like a car's radiator. When the car runs, so does the radiator. That's why exercise is 'good' for you. In nature exercise/activity is a built in part of one's life. In modern day society, it's eminently avoidable. If you're biking. You're winning. Everything else is an interesting conversation subject to debate and digestion. Do we know everything about mitochondria and exercise metabolism? I think some people on this board(who are probably experiencing a touch of Dunning-Krueger) think so. I feel I'm still learning. And learning with like minded bikers seems like an opportunity for me. Can you tweak mitochondrial activity? I believe so. But like I said, if you're biking(or exercising regularly), you're already winning.
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