1. Periods and Functions of Sleep
Just how important it is however, has proved to be a difficult question to answer and even after decades of research and the proposal of various theories, we still cannot say that we have reached a widely accepted conclusion as to the main function of sleep (Zepelin, Siegel and Tobler, 2005), with some researchers describing sleep as "one of the major unanswered questions in biology" (Bennington & Heller, 1995). ... Recordings from EEG studies have shown sleep to possess a number of different wave patterns, a characteristic which has led to the development of "sleep stages.... I...
- Word Count: 3321
- Approx Pages: 13
- Has Bibliography
- Grade Level: Graduate