Talk:Delayed sleep phase disorder

message: I understand the rationale for the redirect of "social jet lag" to this page, for parsimony.
However, not all of what is explained here is true for social jet lag. I.e. this page would need a paragraph at least, in my opinion.
I've added a section on comorbidity sourced by a new study which is using the term social jet lag even its title (Chronotype, Social Jet Lag, and Cardiometabolic Risk Factors in Early Adolescence,  JAMA Pediatr. 2019;173(11):1049-1057. doi:10.1001/jamapediatrics.2019.3089). Here social jet lag was defined by actigraphy results and was treated as an exposure distinctly separate from chronotype.
Lastly, I'd like to alert folks to the fact that there is an article called cultural jet lag which to me reads like social jet lag. I added it to the "see also" section. May someone else pick up the discussion of a possible merger... --Wuerzele (talk) 11:32, 5 November 2019 (UTC)
replies: text: Mixing social jet lag and delayed phase disorder seems to be a bit of an amalgame. Social jet lag "is a measure of misalignment between the individual’s schedule for work and their internal schedule" which presents as "shifts in their sleep between workdays and free days" . The authors of the concept define social jet lag more broadly as "a measure of circadian misalignment. Circadian misalignment is described as an abnormal phase angle difference between two or more rhythms, be they just internal or both internal and external" , but the term "social" necessarily implies that one of those rhythms need to be socially defined. This can be exemplified with two counter-examples: 1) an individial with DSPD who has a night-shift work in phase with their circadian rhythm will still have a delayed sleep phase relatively to the day-night cycle, although they won't have any social jet lag nor chronic sleep deprivation; 2) an individual with a mixed chronotype (ie, non morning lark), which is the case of about 70% of the population (since morning larks represent about 30%) working at usual office hours will often display a social jet lag pattern with reduced sleep duration during the week and increased in the week-end. Hence, I think social jet lag should be dissociated from circadian rhythm sleep-wake disorders. --85.27.2.10 (talk) 12:46, 25 August 2020 (UTC)
thread_title:  "social jet lag" redirect to this page 

message: There is a great body of information here!  But it certainly needs some editing.  The prose is inconsistent, the implications of the phrasing is often at odds, and for an understudied syndrome without great deals of real evidence behind it, the article needs a winnowing down significantly.  Lead is far too long, studies not up to date, =Management= section is outdated/unhelpful verging on potentially harmful. 
Please advise if you are averse to a relatively dramatic editing to make this article more concise and useful to the wikipedia audience. Darkskysunflowers (talk) 08:57, 18 September 2022 (UTC)
replies: text: No opposition after two weeks so I'm gonna edit, please give any feedback if you disagree with the edits. Darkskysunflowers (talk) 02:45, 2 October 2022 (UTC)

text: Seriously this page is a mess, I did my best at fixing the lead but the rest is entirely too verbose and doesn't speak to the topic at hand. Darkskysunflowers (talk) 03:38, 2 October 2022 (UTC)
thread_title:  DSPD revisions