Plenty of footnotes if you want to dig into the details / weeds:
> Conclusion
> In summary, the scientific literature strongly argues against the switching between DST and Standard Time and even more so against adopting DST permanently. The latter would exaggerate all the effects described above beyond the simple extension of DST from approximately 8 months/year to 12 months/year (depending on country) since body clocks are generally even later during winter than during the long photoperiods of summer (with DST) (Kantermann et al., 2007; Hadlow et al., 2014, 2018; Hashizaki et al., 2018). Perennial DST increases SJL prevalence even more, as described above.
[…]
> Summary
> Discrepancies and misalignments between social (local) clock time, sun clock time, and body clock time can be caused by political decisions: DST is one example. There are multiple health and safety consequences of these misalignments. Our goal is that this article’s facts and reasoning will be used to make clock choices that improve human lives.
Interesting and somewhat counter intuitive to me. I imagine that depends on where one lives in a particular timezone.
Personally, I prefer DST. During standard time in California, I have to shift my sleep cycle earlier relative to the clock time as I am unable to sleep once the sun is up which is typically before 7 am.
> Conclusion
> In summary, the scientific literature strongly argues against the switching between DST and Standard Time and even more so against adopting DST permanently. The latter would exaggerate all the effects described above beyond the simple extension of DST from approximately 8 months/year to 12 months/year (depending on country) since body clocks are generally even later during winter than during the long photoperiods of summer (with DST) (Kantermann et al., 2007; Hadlow et al., 2014, 2018; Hashizaki et al., 2018). Perennial DST increases SJL prevalence even more, as described above.
[…]
> Summary
> Discrepancies and misalignments between social (local) clock time, sun clock time, and body clock time can be caused by political decisions: DST is one example. There are multiple health and safety consequences of these misalignments. Our goal is that this article’s facts and reasoning will be used to make clock choices that improve human lives.
* https://www.frontiersin.org/articles/10.3389/fphys.2019.0094...