Sleep

1. The normal human body temperature is 98.6 degrees Fahrenheit. What might be the body temperature of person in a deep sleep?

• a. 100.1 degrees
• b. 98.6 degrees
• c. 97.1 degrees
• d. 64.6 degrees

2. Which of the following is a true statement?

• a. You tend to breathe rapidly during sleep
• b. Most animals sleep in the same position
• c. Hibernation is basically the same as ordinary sleep
• d. Your blood pressure decreases during sleep

3. A neurologist might study:

• a. The connection between heart disease and an unhealthy diet.
• b. The relationship between memory loss and aging.
• c. How the human immune system responds to new viruses.
• d. The role that a person's DNA plays in forming her personality.

4. Which term best describes scientists' knowledge of how the brain behaves during sleep?

• a. Somewhat limited
• b. Extremely thorough
• c. Nonexistent
• d. Hypothetical

5. If you don't sleep for a week, chances are you'll hallucinate. What does this mean?

• a. You'll be cranky.
• b. You'll start forgetting things.
• c. You'll see things that aren't really there.
• d. You'll sleepwalk

6. How is REM sleep different from NREM sleep?

• a. During NREM sleep, your brain is inactive; during REM sleep, it's active
• b. During NREM sleep, your body can't move; during REM sleep, it can
• c. During NREM sleep, you tend to dream; during REM sleep, you can't
• d. During NREM sleep, it's difficult to wake up; during REM sleep, it's easy

7. What can you conclude about REM sleep from its name?

• a. Your eyes move quickly during REM sleep
• b. Your conscious mind shuts off during REM sleep
• c. Your body becomes still during REM sleep
• d. You dream during REM sleep

8. Scientists have not reached a consensus about the reasons why we dream. In other words:

• a. Different people dream for different reasons
• b. Scientists have not examined the reasons why we dream
• c. Scientists have no explanations for why we dream
• d. There are several competing theories as to why we dream

9. The phrase "unconscious mind" describes:

• a. Forgotten memories from childhood
• b. A part of the brain that's never used
• c. Thoughts that you have no control over
• d. Symbols, puzzles, and other mysteries

10. Which of the following statements is true?

• a. If you sleep for eight hours, you'll experience a single stage of NREM sleep followed by a single stage of REM sleep
• b. Periods of NREM sleep are longer than periods of REM sleep
• c. Sleepwalkers are usually completely aware of their actions and surroundings
• d. Most people can go without sleep entirely if they really want to