... brains do not "sleep." Further research by Allen Hobson of Harvard medical school, showed the neurophysiology of dreams. Clusters of REM-on and REM-off cells where located in the brainstem. REM-on cells do their work by releasing a chemical that triggers dreaming. The REM-off cells are less capable of submission to their testing. To some of us who just ... without proper sleep, REM dreaming, people exhibited symptoms of anxiety, panic, fatigue, irritability, inability to concentrate, and to remember. If a person is depressed, the symptoms worsen. Dreaming is a necessary physical functio...

• Word Count: 526
• Approx Pages: 2
• Grade Level: High School