Privacy (for robot vacuums) isn’t cheap. via the Verge.

  • volodymyr@lemmy.world
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    1 year ago

    I am talking about the fact that 5% add up, both over a single day and over multiple days, which cannot be neglected since it makes a significant impact over enough time. You seem to be saying that there is a threshold of spending below which the spending is equal to zero and does not accumulate, right? That would mean that MR adjustment is exactly compensating small increases in energy spending.

    Thanks for the link! I read the paper to the best of my ability, I am not a biological kind of scientist, but I do not find an indication in it for this kind of adjustment you are talking about. The main conclusion seems to be that MR adjusts after major weight loss. Even after this adjustment, I would deduce, adding 5% would help to limit weight loss.

    Do you have a reference which would support your idea that there is a threshold (I guess you are saying it is somewhere between 5% and 20%?) below which energy spending is exactly compensated by MR and hence does not accumulate? Seriously, maybe it exists, I just never heard of it.

    My statement is based on energy conservation, which is also a clear assumption in the article. The net effect on the intake-spending balance can be modified by MR adjustment, but it just does not seem to work the way you propose it does.

    • ExLisper@linux.community
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      1 year ago

      So all I’m saying it’s not just energy conservation. Human body is not a machine where input=output. Some of the food you eat is excreted unprocessed and your metabolism can just slow down. So if you’re just using 5% more energy per day your body can speed up digestion a bit and get more colaries out of the same food or it can slow down more during the night and you will get a better sleep. There’s a limit to it of course but your body will deal with 5% change without using it’s energy stores.

      • volodymyr@lemmy.world
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        1 year ago

        I hear you, but scientists specifically study how metabolism adapts, for example the study you quote. And, as far as I see so far, they find that the adaptation just does not work like you think it does. You may choose to insist on your intuition despite empirical evidence against it. But I hope you realise this can lead to your expectations, based on this intuition, clashing with reality.

        • ExLisper@linux.community
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          1 year ago

          How does it work then? As I understand it depriving body of calories causes it to be more efficient with the calories it gets. What I’m missing? Maybe what you are still missing is that this effect will change depending on amount of calories we’re talking about? I doubt there are studies measuring the effect of 100 calories deficit because it would be negligible. Of course if we get into real diet/moderate exercise the effects will change. Is this why you think the effect is different overall?

          • volodymyr@lemmy.world
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            1 year ago

            Sorry for the long silence. The adaptation works in reaction to large persistent changes, not small 100 restriction as you are proposing. This also makes sense intuitively, large changes cause reaction while “slow and steady” achieves long term goals.

            There are, apparently, discussions referencing just the 100 reduction effect:

            https://www.prima.co.uk/diet-and-health/diet-plans/news/a40499/100-calories-weight-loss-study/

            They refer to actual research I could not yet access due to paywalls. I will try to find it.

            • ExLisper@linux.community
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              1 year ago

              Sorry for the long silence

              No problem, we’re all busy here.

              Maybe you’re right, maybe the metabolism changes will not kick in with 100 calories reduction.

              Stil, even if all this is true (I mean, no need to get into the paywalled details) we’re taking 4kg over 3 years which in many cases will be totally insignificant. Many people will not start eating more because they lost 4kg. But even if they will then, as this article says, eating 100 calories more doesn’t require actually eating ‘more’ food, just a different one. Get a potato instead of a salad, get different type of bread, or a normal butter instead of ‘diet’ one. Figuring out if those changes are carbon negative or positive would be incredible difficult as they would depend on the specific products you’re changing, where do you buy it and so on but my bet is they will be close to 0. I still think it would take way more than that to offset the carbon footprint of a Rumba.