An astronaut orbiting earth experiences 45-minute periods of daylight alternating with 45-minutes periods of darkness.What is likely to happen?
A)The alternating patterns allow for normal rhythm development.
B)They are fully alert during wakeful periods.
C)They are able to sleep during rest periods.
D)They sleep poorly during rest periods.

Question

An astronaut orbiting earth experiences 45-minute periods of daylight alternating with 45-minutes periods of darkness.What is likely to happen? ​
A)The alternating patterns allow for normal rhythm development.
B)​They are fully alert during wakeful periods.
C)​They are able to sleep during rest periods.
D)They sleep poorly during rest periods.

Quizplus · Accepted Answer

The 45-minute alternating pattern of daylight and darkness is likely to disrupt the astronaut's circadian rhythm, making it difficult for them to sleep during the rest periods. Research has shown that exposure to such irregular light-dark cycles can interfere with the body's production of the hormone melatonin, which regulates the sleep-wake cycle, leading to poor sleep quality.

An Astronaut Orbiting Earth Experiences 45-Minute Periods of Daylight Alternating