A student researching sleep has taken notes:
• Sleep deprivation affects judgment and reaction time • REM sleep is crucial for memory consolidation • Adults need 7-9 hours of sleep per night • Sleep quality matters as much as quantity • Blue light from screens can interfere with falling asleep
10
readingThe student wants to explain the cognitive importance of sleep.
A
Adults need 7-9 hours of sleep per night for optimal health.
B
Sleep is cognitively essential: REM sleep consolidates memories, while deprivation impairs judgment and reaction time.
C
Sleep quality matters as much as the quantity of hours slept.
D
Blue light from electronic screens can interfere with falling asleep.
Correct Answer: B
Choice B. Memory consolidation and impaired judgment show cognitive importance.