School start times are a concrete example of the gap between science and policy. We’ve known for years that chronic sleep loss is a full‑blown public health crisis—yet the U.S. still treats it like a personal failing. And chronic sleep loss isn’t just a health crisis—it’s an economic one. The U.S. loses an estimated $411 billion a year to fatigue‑driven errors, absenteeism, and reduced productivity.

Later school start times are one of the clearest feasible policy solutions. When schools start later, students actually sleep more—and everything from attendance to graduation rates to mental health improves. Teen car crashes drop. The return on investment is enormous. And yet the CDC didn’t label insufficient sleep an epidemic until 2011, with most people still treating sleep problems as personal failings rather than structural ones.

Meanwhile, teens are still expected to perform on schedules that defy their biology. The American Academy of Pediatrics called for an 8:30 a.m. earliest start back in 2014. Ten years later, most districts still haven’t moved. Adult conveniences, myths, and misconceptions get protected; kids don’t.

California finally forced the shift, and early results are exactly what the science predicted: better attendance, stronger academics, fewer teen crashes.

This new Altitudes piece zooms out to the bigger story: how America normalizes sleep deprivation, why the costs are staggering, and why continuing to ignore the science is no longer tenable.