Paul Eggert via tz wrote in <20260302065032.876725-1-eggert@cs.ucla.edu>: |* tz-link.html (Costs and benefits of time shifts): |Also cite Romigi, Franco, Scoditti et al 2025. Ok, unfortunately to note that there is a "European Sleep Research Society", esrs.eu, that is unfortunately linked to by the German Berlin Charité Schlaflabor ("competence center sleepmedicine" in fact, 1:1) [1]. There at the esrs we unfortunately find things like [2], which reiterates insane numbers we also heared here already (but on breast cancer, if i recall correctly), like heart attack risk increase from 4%-29% (i note the measurement tolerance window), and i note in the nice animated image the words "we just wake up earlier and have more light at the end of our social day". There is also [3], which says, under the headline "Negative effects of daylight saving time on our biological clock and sleep duration" The paper shows that the longer the difference between solar time and clock time (called solar jet lag), the shorter our sleep duration. as well as Patients with delayed sleep-wake phase disorder are particularly affected by this discrepancy, like having a very to extremely delayed chronotype. How they come to The recommendation is to abolish daylight saving time and stick to standard time for better entrainment to solar exposure. It’s important to focus on biology rather than economics when making these decisions for potential future health consequences. i do not understand, maybe some of the readers here can explain to me how "wake up earlier and have more light at the end of our social day". and for better entrainment to solar exposure. fit together as an argument against DST. I note that i also am pro leapseconds, and we have seen an official paper of the timekeepers that i said to But one may please allow me to again point out how superficial all the argumentation is against the cultural achievement as such. How this miserable document uses the time drift against "sun reality" within timezones, which are often subject to political reasoning per se, to argue against leap seconds. This arguing is false and totally misses the point of the outcome of thousands of years of observation, exploration, and science. Who can count the millions of man-hours of astronomical observation over thousands of years. Who can yet reiterate the satisfaction, and ignited further longing, for each correct forecast and technical improvement. The incredible achievement of being able to very, very precisely and accurately track time as it passes. It is sacrificed on the table of more rapidity on this road to nowehere. Whereas, in reality, what would be needed is the absolute opposite, as your quote shows; accessible solutions exist, but the lowest bidder and similar camalities prevail, as it shows. I find it a bit funny maybe even that [3] also says It’s important to focus on biology rather than economics when making these decisions for potential future health consequences. and conclude that humans seem to need light for mood enhancing and mental health, for Vitamin D production, etc -- actually i am bored! Yes, the known Sigmund Freud for example just had a midday walk in the open air, which possibly should be made available as an option for all human beings thus. But normal people like mechanics etc should at least see some light in the afternoon when they go home, .. or better yet, work times should start much later than 7:30 am, some craftsman even start earlier here, and that is when they start working, let aside the approach to work, so that they see light in the morning. So if studied academics bring arguments like [2] does, "-1 hour sleep!", then i wonder. How about being *conscious* about the living situation, and go to bed earlier? Say 30 minutes on Saturday, and 30 Minutes on Sunday. Isn't reflection as such a or *the* subject of religion and philosophy? Pour whisky in the baby so that it sleeps all night first, and then that. The society should care, you know. "We now turn the clocks, and beware! tomorrow you will have to drive in daylight when going to work -- why no just take the bus, we have some discounted all-year ticket for that, will you? We do this all together." Or something like that. Unless, and that it is for me, the grotesque and unnatural and very much biased and hypocritical overall situation of people in the west (i blindly guess all that scientific data is only about "global north, west", and selected so it fits) is included -- for example, fracking caused drinking water quality detoriation for entire regions in the united states, as i see it, and all that, smartphone addiction, excessive TV usage, highly refined food, and all of it, i for one cannot believe that a months-in-advance known time switch has so many bad effects. And now comes our Russian friend from Antarctica, and says the penguins there say it simply does not matter, as it is dark for six months, and bright for the other six. Now with Moscow time. So that for granted unscientific context for those masses of studies of often overpaid academics. All in my opinion. The links are official though. (Unfortunately. To say that not being able to sleep is murder, i have read and heard about poor souls who have to do the impossible and deal, through [1].) [1] https://schlaf.charite.de [2] https://esrs.eu/news/sleep-science-friday/daylight-saving-time-myths-facts/ [3] https://esrs.eu/news/sleep-science-friday/negative-effects-of-daylight-savin... --steffen | |Der Kragenbaer, The moon bear, |der holt sich munter he cheerfully and one by one |einen nach dem anderen runter wa.ks himself off |(By Robert Gernhardt)