Regarding REM dreams, which of the following statements is FALSE?

a. REM sleep was discovered in 1952.
b. Dreams are usually spaced about 30 minutes apart.
c. Most people dream four or five times a night, but not all people remember their dreams upon awakening in the morning.
d. In general, daytime disturbances are related to the total amount of sleep lost, not to the type of sleep lost.

ANSWER: b