Low AHI feels worse

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Okaythen
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Low AHI feels worse

Post by Okaythen » Wed May 11, 2022 8:48 am

When on CPAP, why would a low AHI—e.g. under 1—make one feel more tired and worse in the morning than a higher AHI—e.g. 2 or 3? This has been my experience.

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ChicagoGranny
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Re: Low AHI feels worse

Post by ChicagoGranny » Wed May 11, 2022 10:05 am

How do you know the low AHI is the cause? There are many variables to sleep, rest, the body and the mind.

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Re: Low AHI feels worse

Post by chunkyfrog » Wed May 11, 2022 10:27 am

Add in bed comfort, room temperature, humidity, noise level, whatever;
or if you are coming down with a "bug".

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Re: Low AHI feels worse

Post by Okaythen » Wed May 11, 2022 10:46 am

ChicagoGranny, this is the pattern I experience. Nothing to do with cause. What happens in my body when my AHI is below 1 to make my sleep worse? I have no idea.

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Re: Low AHI feels worse

Post by Okaythen » Wed May 11, 2022 10:48 am

ChunkyFrog, no, it’s none of that. I’ve seen people ask this question before but nobody seems to know the answer. So it doesn’t happen to just me.

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ChicagoGranny
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Re: Low AHI feels worse

Post by ChicagoGranny » Wed May 11, 2022 11:04 am

Okaythen wrote:
Wed May 11, 2022 10:46 am
Nothing to do with cause.
Huh? It was you who said it was the cause.
Okaythen wrote:
Wed May 11, 2022 8:48 am
why would a low AHI—e.g. under 1—make one feel more tired and worse

Okaythen
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Re: Low AHI feels worse

Post by Okaythen » Wed May 11, 2022 11:08 am

Pardon me for not wording it properly. Why do I feel worse with an AHI of under 1? I should have said. Just semantics.

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ChicagoGranny
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Re: Low AHI feels worse

Post by ChicagoGranny » Wed May 11, 2022 11:25 am

Because you've noticed a correlation, you seem to be stuck on the idea that it is causation. You are rejecting other ideas. For instance, you rejected these ideas:
chunkyfrog wrote:
Wed May 11, 2022 10:27 am
bed comfort, room temperature, humidity, noise level, whatever;
or if you are coming down with a "bug".
Do you use OSCAR to closely monitor your breathing?

Okaythen
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Re: Low AHI feels worse

Post by Okaythen » Wed May 11, 2022 11:30 am

You obviously don’t have the answer, so why bother responding? It’s not those things. I mentioned that it’s happened before, on multiple occasions actually. It’s probably more microarousals, for whatever reason, since the breathing events are being addressed. Thus the worse sleep quality.

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ozij
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Re: Low AHI feels worse

Post by ozij » Wed May 11, 2022 12:15 pm

Okaythen wrote:
Wed May 11, 2022 11:30 am
You obviously don’t have the answer, so why bother responding? It’s not those things. I mentioned that it’s happened before, on multiple occasions actually. It’s probably more microarousals, for whatever reason, since the breathing events are being addressed. Thus the worse sleep quality.
Maybe on the low AHI nights you're not getting into deeper sleep or REM sleep - and are therefore more tired.
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Okaythen
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Re: Low AHI feels worse

Post by Okaythen » Wed May 11, 2022 12:32 pm

Ozij, I’ve thought of that. Good thought.

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lazarus
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Re: Low AHI feels worse

Post by lazarus » Wed May 11, 2022 1:22 pm

When there seems to be a consistent correlation between one night's AHI and how one feels in the morning (either opposing or aligning), I suggest not checking AHI until the end of day to make sure expectations aren't inadvertently coloring the perceived correlation. It is too easy for the mind to think "then why don't I feel better/worse this instant?' when seeing a number. We have to do our best to double-blind ourselves with our own data.

It's the long trending that matters anyway, so it's probably better not to look every day. Reducing one night's AHI into some sort of a Magic 8 Ball or daily horoscope that we then consider always wrong or always right is probably a fundamental abuse of what that one night's data is for anyway, in my opinion, in the context of optimizing treatment.

But, yeah, I do it too. :lol:
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Hang Fire
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Re: Low AHI feels worse

Post by Hang Fire » Wed May 11, 2022 1:25 pm

Okaythen wrote:
Wed May 11, 2022 8:48 am
When on CPAP, why would a low AHI—e.g. under 1—make one feel more tired and worse in the morning than a higher AHI—e.g. 2 or 3? This has been my experience.
You left out a key piece of information. What is the breakdown of those AHIs - clear airway/obstructive/hypopnea?

Okaythen
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Re: Low AHI feels worse

Post by Okaythen » Wed May 11, 2022 1:27 pm

Lazarus, this is all well and good but I’ve been on CPAP for 6 years now and this is the pattern. Always when I’m more relaxed via interventions that calm the CNS. Never fails. If AHI goes under 1, I am more exhausted. The purple under the eyes even matches it. I understand if nobody has an answer. Neither do I.

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Hang Fire
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Re: Low AHI feels worse

Post by Hang Fire » Wed May 11, 2022 1:31 pm

lazarus wrote:
Wed May 11, 2022 1:22 pm
I suggest not checking AHI until the end of day to make sure expectations aren't inadvertently coloring the perceived correlation.
Wouldn't it be the other way around? You see a higher AHI which becomes a self-fulfilling prophecy for "feeling worse"? Strange duck who sees a lower AHI and says, "Oh no, I'm going to have a bad day."