“You’re Not Dreaming — The CDC Says School Should Start Later “
““There’s this image of American teenagers as lazy and loving sleep,” Pratt said. “But the reason they need those later start times is because their circadian rhythms — their biological clocks — mean they can’t get high quality sleep until after 11p.m.”…
Pratt said that while in your teens, your body isn’t totally ready for the full-on adult schedule. For a huge number of teens, their bodies keeps producing the sleepy-time chemicals (melatonin) between the hours of 11 p.m. until well into the morning. So, a 7:30 a.m. calculus class could just biologically not work.”
And also, a lot of people don’t have a morning chronotype at any point in their life. We need to be more aware of how much diversity there is in how we work.
Related: “Why the workday should be 10–6, not 9–5”