ABSTRACT
There are more than a few primary, fundamental questions in the field of sleep that remain unanswered. Research into our field is still in its infancy, with only a little over 50 years since the discovery of rapid eye movement (REM) sleep that initiated the systematic, scientific exploration of sleep and its disorders. Any list of the most important questions to resolve in sleep would probably contain the following:
■ Why do we sleep (i.e., what is the function of sleep)? ■ Where is sleep controlled in the brain? ■ What determines the onset of sleep? ■ How can we cure obstructive sleep apnea?
