Sleep: Test Your Knowledge

1. The rapid eye movement (REM) sleep stage is when dreaming occurs. How often does REM happen during the night?

A. 4 or 5 times B. 3 times C. 2 times D. 1 time

2. To function well, adults should average how much sleep a night?

A. 5 hours B. 6 hours C. 7 to 8 hours D. 9 to 10 hours

3. How many Americans suffer from undiagnosed sleep disorders?

A. 10 million B. 40 million C. 125 million D. 200 million

4. A sleepless night can have a similar effect on your ability to drive in morning rush-hour traffic as which of these?

A. Using a cell phone while driving B. Using medications that make you drowsy C. Using alcohol D. None of the above

5. Minor sleep deprivation can affect concentration, mood, and what else?

A. Memory B. Physical performance C. Ability to do math calculations D. All of the above

6. Sleepwalking tends to run in families. At what ages does it occur most often?

A. 3 to 5 B. 6 to 12 C. Teen years D. Adult years

What Do You Really Know About Sleep?