To steelman those school administrators/policy makers, we barely know how the human body even works and how to maintain it. These mechanisms like diet and slee

To steelman those school administrators/policy makers, we barely know how the human body even works and how to maintain it. These mechanisms like diet and sleep have feedback cycles of months, year, or decades. Sometimes even lifetimes. We're extremely bad at learning from them and often fall into short-term traps that cause much bigger long-term harm. I.e. do we, as a society, know what "a healthy diet" is? Or what "healthy sleep habits" are? I would argue we don't. If you were to survey the median person, they'd probably be pretty outdated and wrong on both. Same for doctors, who typically have their knowledge from med school and haven't kept updated much ever since. In my experience, the typical doctor doesn't know much about chronotypes besides maybe that they exist, and will recite diet dogma from the 80s or whenever he/she graduated. So while I do agree that the impact is terrible, let's not forget that the median person simply has no idea what works, even the leading frontier of science and researchers is only slightly better off. It's like being mad at medieval peasants for not knowing about electrons or ramjets: it was very unlikely they could've known better at the time.