Teens don’t get enough sleep, and it’s not because of Snapchat, social lives or hormones — it’s because of public policy, says Wendy Troxel. Drawing from her experience as a sleep researcher, clinician and mother of a teenager, Troxel discusses how early school start times deprive adolescents of sleep during the time of their lives when they need it most.

Das für mich bislang überzeugendste Plädoyer, warum Schule frühestens um 8:30 Uhr beginnen sollte. (TED)