Understanding the Zombie Teen's Body Clock may sound like a Halloween challenge, but is actually the title of Sue Shellenbarger's recent Wall Street Journal article exploring just how different the adolescent sleep cycle is from that of childhood or adulthood. Zombie teens experience a "biological 1-2-3 punch:" Puberty creates a median 1.5-hour delay in the body's release of the sleep-inducing hormone melatonin. The buildup of the need to sleep as the day wears on, Read More …