PSY 202 Chapters 5, 9, 10 Pyschology: Themes and Variations (9th ed.).
PSY 202 Chapters 5, 9, 10 Page ? PAGE \* MERGEFORMAT ?1? Weiten, W. (2013). Pyschology: Themes and Variations (9th ed.). Belmont, CA: Wadsworth Cengage Learning. Chapter 5 Importance of sleep: The featured study showed that sleep restriction produces a gradual decline in cognitive performance at is substantial. Increase the penis can be a significant problem that appears to contribute to any transportation accident and mishaps at work. Research on selected sleep deprivation suggests that people need REM sleep. These stages of sleep may contribute to memory consolidation. Short sleep duration is associated with a variety of health problems. People who sleep 7 to 8 hours per day have lower mortality rate than individuals who are long or short sleepers.