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A comment on Maybe Your Sleep Problem Isn’t a Problem. Parent comment

Re:Maybe Your Sleep Problem Isn’t a Problem by crazygringo on Monday August 27, 2018 @12:44PM (#17852530)
> All humans have a hardwired dip in midafternoon alertness.

In my personal experience, if you don't have a post-lunch carbs crash and you do have air conditioning, the dip doesn't exist.

He doesn't really seem to back up the existence of a biological dip at all that is innate to human rhythms.

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Re:Maybe Your Sleep Problem Isn’t a Problem by medell on Monday August 27, 2018 @12:51PM (#17852593)
Isn't he claiming the opposite? (But I don't have the book to dig into the sources):

This brief descent from high-degree wakefulness to low-level alert­ness reflects an innate drive to be asleep and napping in the afternoon, and not working. It appears to be a normal part of the daily rhythm of life.

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Re:Maybe Your Sleep Problem Isn’t a Problem by Izkata on Monday August 27, 2018 @07:14PM (#17855301)
I've always understood it to be related to the hottest part of the day, not so much a post-lunch thing. Probably why GP mentioned air conditioning preventing it.
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