Influence of Environment
The basic physiology of human sleep does not vary from
In the course of a normal night's sleep the majority of people move through several sleeping postures. Researchers believe that such movements are beneficial because it prevents restriction of
- Huxley, Aldous. In Coren S. Sleep Thieves: An Eye-Opening Exploration into the Science and Mysteries of Sleep. New York: The Free Press; 1996, p. 175.