Suppose you work on a submarine with only artificial light. You are required to follow a schedule of working for 12 hours and then sleeping for 6. What rhythm, if any, will your alertness and body temperature show?
A) They will follow a rhythm of 18 hours.
B) They will follow the usual rhythm of 24 hours.
C) They will follow a rhythm of 21 hours.
D) They will cease to show any consistent rhythm.

Question

Quizplus · Accepted Answer

Despite the altered schedule, the body's internal clock, or circadian rhythm, tends to stay close to a 24-hour cycle, influencing alertness and body temperature among other physiological processes. This rhythm is deeply ingrained and does not easily shift to match artificial work/rest cycles.

Suppose You Work on a Submarine with Only Artificial Light