Welcome back! Here's this week's question.

For patients with advanced or early phase sleep phase, phase shifts have been documented using:

A) Motivational therapy
B) Bright light therapy
C) Cognitive behavioral therapy
D) Sleep deprivation
E) Growth hormone injections

Question-of-the-Week

Source: http://sleepdisorders.sleepfoundation.org/chapter-5-circadian-rhythm-sleep-disorders/delayed-sleep-phase-type/definition/what-is-delayed-phase-sleep-disorder