Do later school start times help California students? Here’s what a new study says

Summary by The Los Angeles Editorial Desk · Byline on the source page: Vani Sanganeria | EdSource, as published by LAist (KPCC / Southern California Public Radio) · September 8, 2026 · 1 min read

Photo: LAist (KPCC / Southern California Public Radio) · view original

(Jane Meredith Adams / EdSource) California’s mandate requiring later start times for middle and high schools is already yielding results, with students sleeping more, reporting better mental health and scoring higher math and English scores, according to a new study. The new working paper from t...

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Summary created by	The Los Angeles Editorial Desk — automated, rule-governed
Byline on source page	Vani Sanganeria \| EdSource, as published by LAist (KPCC / Southern California Public Radio)
Original story	Read at the source
Source published	Sep 8, 2026
AI assistance	Automated summary drawn from the source’s own published text
Prepublication human review	No — editorial rules, flagged-item review, and published samples

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