Protein synthesis _____________ during REM sleep.

If someone is sleeping and her eyes begin to move rapidly while still closed, we would assume that she is in the _____________ stage of sleep.

________________ sleep can be called paradoxical sleep.

When people are awakened in REM sleep, they report vivid dreams about ______ % of the time.

About ______ of people in the U.S. get too little sleep.

__________ is a sleep disorder in which a person has trouble falling asleep or remaining asleep.

__________ is a sleep disorder in which a person falls asleep suddenly many times a day.

_____________ is demonstrated when one must increase the dosage of a drug to get the same effect.

Some people experience alcohol as a(n) _____________ because it inhibits centers in the brain that are used in higher-level thinking and impulsive behavior.

Smoking increases _____________ in the area of the brain that affects mood.