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I'm reading the Resmed definition of apnea and hypopnia.

"Apnea" means "no breath." An apnea happens when you stop breathing for 10 seconds or longer during sleep.

"Hypopnea is a partial blockage of the airway (shallow breathing). During a hypopnea, breathing is reduced by 50% for 10 seconds or longer."

OK.

So what happens when it's an apnea of 9 seconds, or a hypopnia of 49%?
Is that unreported?

The medics at the hospital go by data reported by my resmed device so what are they seeing and does it reflect true health?

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An apnoea or hypopnoea of less than 10 seconds won't be reported as an event, in the same way they're not reported on a sleep study, as that's the cut-off point.

It's a suspiciously round number I wonder how they arrived at it?
I asked the People at Castle Hill and they didn't really enlighten me on it, but I was told that it's normal for people to have apnoeas, which I didn't know.
I thought normal healthy sleep was no apnoeas so that is the thing to aim for, but apparently they are ubiquitous.
It's can be a long time before we find out our basic conceptions are wrong, at least speaking for myself.

Next I want to find out about UARS, which Dr Park says is a problem, but the medics at Castle Hill didn't rate as an issue.

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