Lee has problems sleeping. For a week he will be ready to go to sleep around 6:00 p.m. and then wake around 2:00 a.m. The follow
ing week he will be ready to go to sleep around 10:00 p.m. and then wake around 6:00 a.m. Then for a week he will not be able to go to sleep until around 2:00 a.m., and he will wake around 10:00 a.m. This is followed by a week of not being able to go to sleep until 6:00 a.m. and waking around 3:00 p.m. His sleep cycle is like this each month, regardless of what he does to control his sleep patterns. He would be diagnosed with:
<em>Circadian Rhythm Disorder</em> is a type of <em>sleeping disorder</em> that revolves around interruptions in a persons "internal body clock", called the circadian rhythm, which controls and maintains a persons 24 hour body process.
If a patients suffers from this disorder his sleep patterns will be out of alignment. This disorder is mostly caused by:
