Joe is a 16-year-old high school student whose sleep disorder had gotten so bad that he wasn't attending classes at all. It had all begun the previous year when his parents divorced, and he lived for several months with an older brother who didn't enforce bedtime rules. Joe started exchanging text messages with an insomniac friend and played online games against opponents on the other side of the planet. By the time he moved back in with a parent, he was staying up until 3 a.m. and was incapable of getting up with the alarm. In danger of flunking out of school because of poor attendance, he seeks your help. Secondary information: Joe describes himself as a "night-owl."

What is your specific diagnosis? 

 Why is being a "night owl" important and how is this disorder related to circadian rhythms?

Answer rating: 100% (QA)

Based on the information provided Joes specific diagnosis could be Delayed Sleep Phase Disorder DSPD ... View the full answer