This makes sense. To be clear, perceived time is not directly affecting blood glucose, it is affecting speeds of digestive breakdown and/or insulin secretion rates (most type-2s still secrete insulin). Interesting that this study was even run on diabetics at all (as opposed to euglycemic people) - not sure what the utility is there besides them being familiar with continuous glucose monitors.
Blood sugar level follows perceived time rather than actual time in diabetics
51–60 of 90 posts
Re: Blood sugar level follows perceived time rather than actual time in diabetics
#52This makes sense. To be clear, perceived time is not directly affecting blood glucose, it is affecting speeds of digestive breakdown and/or insulin secretion rates (most type-2s still secrete insulin). Interesting that this study was even run on diabetics at all (as opposed to euglycemic people) - not sure what the utility is there besides them being familiar with continuous glucose monitors.
>Participants were instructed to record their BGLs before and after every meal and to complete a daily blood glucose change chart for a week before the experiment.
For one, I imagine getting a group of people with no history of monitoring their blood glucose to accurately track it over a week would be tricky.
Re: Blood sugar level follows perceived time rather than actual time in diabetics
#53Earlier quoted context omitted.
Your story "proves" all the studies with sommeliers where they duped them into rating white wines (with red food coloring) as fancy red wines. All the sommeliers failed the blind tests. In fact all those studies showed was that the taste of wine stemmed primarily from the perception of the bottle rather than the actual taste.
Might want to refresh your reading on this. AFAIK this is reference to one (unpublished) study where undergrad wine science students tended to choose from a list of descriptive terms usually associated with red wine to refer to dyed white wine, most of the time . It's certainly true that suggestion can change ones perception of wine (or any flavor), but I don't think it's clear that it's the primary factor.
There appears to be abundant evidence that wine-tasting is largely nonsense, including experiments done on wine judges: https://www.theguardian.com/lifeandstyle/2013/jun/23/wine-ta...
Re: Blood sugar level follows perceived time rather than actual time in diabetics
#54Earlier quoted context omitted.
When I say "commonly-available", I mean "big national brands that you can find in a supermarket anywhere in the country". With less common/local brands, yeah, some are actually quite hot.
Please don't assume that other users here are all from US of A.
The same is true in Mexico
Re: Blood sugar level follows perceived time rather than actual time in diabetics
#55What happens if someone with diabetes takes LSD?
That’s an interesting question. Very.
Serotonin is involved in all of it. The perception of time. As well as insulin secretion and blood glucose control, directly. As well as inflammation, which is a big part of diabetes, as well as in psychedelics – serotonin receptor 5-HT2A activation is immunomodulatory; It reduces inflammation.
Re: Blood sugar level follows perceived time rather than actual time in diabetics
#56This seems to indicate that studies should be designed to investigate the effectiveness of diets with respect to expectations and future plans; since the system is complex and literally based on the subject's memories and expectations of future events.
With surgeries on the eye the patient selection criteria extends well beyond the measurable aspects of their vision.
Instead the criteria is highly dependent on the patient's expectations and second to that that their willingness to work with the vision they receive. Notwithstanding physical limitations it's this difference in attitude which results in real world, measurable, improvements in the patient's visual acuity.
Outside of the op space, a similar-ish issue exists with multifocal glasses (and contact lenses) - these technologies work, but how well they work is highly dependent on the patient's expectations.
Re: Blood sugar level follows perceived time rather than actual time in diabetics
#57What if perceived time is actually following blood sugar levels, and not the other way around?
The article is worth skimming, or at least the abstract
They didn't rely on the participants' subjective perception of time passing, but manipulated it through means that can't possibly be downstream of the subjects' blood sugar.
> Participants’ perception of time was manipulated by having them refer to clocks that were either accurate or altered to run fast or slow
Re: Blood sugar level follows perceived time rather than actual time in diabetics
#58I’m inclined to believe this is an inaccurate study. I’d really like to see it replicated. That said, assuming it’s accurate — that’s kind of an amazing physiological response to perceived time. I wonder if other systems can be impacted or what would cause this particular system to be impacted? I could see people’s metabolism changing based on perception(s). So many questions, but an exciting and interesting area.
I feel like it's one of these studies where there is deep importance not to read more into the conclusion than what it states.
So while expectation of time would be a factor, it wouldn't be the only factor and that alone couldn't break out of the physical constraints of the system.
I think hunger is comparable: one can be hungry over time as a result of the natural changes in their body, or they can become hungry merely by looking at appetising food. I think psychology can play a useful, but complicated role.
Re: Blood sugar level follows perceived time rather than actual time in diabetics
#59Important note!
> Another potential confounding factor concerns the imbalanced number of times each group switched video games. Participants switched games every 15 min, according to the clocks they were given, so participants in the fast clock group switched more frequently than participants in other groups. One might propose that the increased switching in the fast clock group might have led to greater activity and exertion, causing blood glucose to decline more rapidly. The switching process entailed loading up a different video game on a computer, which is not a particularly demanding task. Even so, we controlled for this, to a degree, by instructing participants to alert the experimenters when it was time to change games, at which point the experimenters performed the actual switching. No actual effort was required of participants to make the change, aside from alerting the experimenter. It seems implausible that the effort required to signal the experimenter at switching times could have played a significant role in the intergroup differences observed.
They did not switch every 15 minutes! They switched every 15 fake minutes, ie. every 7 minutes in the fast group and every 30 minutes in the slow group. The paper waves this away, but I suspect that getting used to a new game takes more energy than they realize.
A way to test this would be by varying the time that the last game is played, in order to measure blood sugar change during beginning or end of a play phase. If this is correct, consumption should be bigger at the start and lesser at the end of each phase, regardless of how long it actually is.
Re: Blood sugar level follows perceived time rather than actual time in diabetics
#60OP follows Andrew Huberman. https://www.youtube.com/watch?v=8IWDAqodDas :)