Dr. Wendy Troxel is a Senior Behavioural and Social Scientist and Adjunct Professor of Psychiatry and Psychology at the University of Pittsburgh. She is a licensed clinical psychologist specialising in behavioural treatments for insomnia and other sleep disorders across the lifespan. As many of us are aware, teens don't get enough sleep. And it's not because of Snapchat, social lives or hormones – it's because of school policy, says Wendy Troxel. Drawing from her experience as a sleep researcher, clinician and mother of a teenager, Wendy discusses how early school start times deprive adolescents of sleep during the time of their lives when they need it most.