START SCHOOL LATER
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Welcome to Start School Later Ann Arbor, MI!

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Our National Petition

The Ann Arbor chapter was started by a group of concerned parents/scientists dedicated to following evidence-based policies in the Ann Arbor Public School System. The scientific evidence about start times is clear: Teens need to start school no earlier than 8:30 a.m., as recommended by the American Academy of Pediatrics, the Centers for Disease Control, and the American Medical Association.  
Scientific evidence shows that puberty shifts teens’ physiological sleep cycles by two hours (on average), so that it is difficult for teens to fall asleep before 11 p.m. or awake before 8 a.m.  When teens are forced to be awake at times incompatible with their biology, the result is impaired cognition, learning, physical health and mental health, and risks to their safety. This delayed sleep cycle is an independent factor determining when teenagers sleep. Other factors, such as avoiding exposure to screens late at night, can improve sleep habits. But the delayed sleep cycle is biologically determined.
Success! MLive report from June 2017
Click here for A2Schools late start info 

The scientific evidence clearly shows that when schools start later, students do get more sleep, get better grades, have higher standardized test scores, and experience better quality of life. By simply aligning school schedules to their biological sleep rhythms, teens benefit from reduced risks of being depressed or overweight, and from car accidents and sports injuries. All we need do is start school no earlier than 8:30 a.m.! Join us in encouraging parents and students to follow the evidence to later start times!

    Email the Ann Arbor Chapter!

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Start School Later, Inc. 
574E Ritchie Highway #164
Severna Park, MD 21146
​© 2011 - 2025
Start School Later, Inc. is a 501(c)(3) non-profit organization dedicated to healthy, safe, equitable school hours. 
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Start School Later®, StartSchoolLater.net, and the Start School Later logo are trademarks of Start School Later, Inc.
  • About Us
    • Mission and Goals
    • Who We Are >
      • Board of Directors
      • National Team
      • Local Chapters
      • Advisory Board
      • Coalition Partners
    • Annual Report
    • Bylaws
    • SSL News >
      • Press Releases
      • Newsletters
      • Blog
  • Learn More
    • School Start Times >
      • Why Change?
      • Wake Up Calls (Fast Facts)
      • Key Position Statements
      • Success Stories
      • Legislation
      • Myths and Misconceptions
    • Sleep Education >
      • Let's Sleep!
      • Sleep 101 - College
      • Sleep Calculator
      • Workshops and Webinars
    • Legislation
  • Get Involved
    • Join our Mailing List
    • Contact Us
    • Donate
    • National Conference 2024
    • Find a Local Chapter
    • Sign our Petition
  • Get Resources
    • Bookstore
    • Flyers, Posters, Videos, etc.
    • Implementation Help
    • Merchandise
    • Reference and Resource List