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Re:Ask HN: How can I get over my lethargy, lack of focus, an... by arrrvalue on Monday July 10, 2017 @07:53PM (#14740601)
When you wake up, do you sense you've had vivid dreams? Or do you just have a blank mind and headache?

Do your teeth bite together normally? Can you breathe clearly through both sides of your nose throughout the night?

Re:Ask HN: How can I get over my lethargy, lack of focus, an... by dek0de on Monday July 10, 2017 @09:01PM (#14740859)
That seems to be a very directed line of questioning. Mind If I ask why you seem to think sleep deprivation is the issue? Your last 2 questions trouble me a little, as I exhibit both of those conditions, rather irregularly.
Re:Ask HN: How can I get over my lethargy, lack of focus, an... by dsnuh on Monday July 10, 2017 @09:40PM (#14741000)
My guess is sleep apnea.
Re:Ask HN: How can I get over my lethargy, lack of focus, an... by arrrvalue on Tuesday July 11, 2017 @04:11AM (#14742398)
Yes, exactly; this sounds like profound cognitive dysfunction consistent with either OSA or Upper Airway Resistance Syndrome. If a skeletal abnormality is present it would manifest as a compromised bite relationship, while the more mild UARS could appear with obstruction of the nasal passages.

Worth evaluating.

Re:Ask HN: How can I get over my lethargy, lack of focus, an... by vldx on Tuesday July 11, 2017 @10:41AM (#14744546)
This is interesting, would you recommend any specific resources to research further?
Re:Ask HN: How can I get over my lethargy, lack of focus, an... by boingboingboing on Monday July 10, 2017 @08:51PM (#14740822)
Just curious, what is it to do with breathing clearly through both sides of the nose throughout the night?
Re:Ask HN: How can I get over my lethargy, lack of focus, an... by dsnuh on Tuesday July 11, 2017 @04:04PM (#14747544)
See @arrrvalue's comment above.