Science has told us that sleep related disorders such as sleep apnea are associated with depression, ADHD, PTSD, obesity, and other conditions. But what if these sleep disorders are not merely a symptom of these other conditions, but rather a cause of them? In part 2 of a series on sleep with Dr. Shane Creado, Dr. Daniel Amen and Tana Amen discuss the importance of doing a sleep study to see if a common sleep related disorder such as sleep apnea may be causing your conditions.