Question

When does the Window of Circadian Low (WOCL) occur?

a) In the morning
b) In the afternoon
c) In the evening
d) During the night

Answer 1

The Window of Circadian Low (WOCL) occurs during the early morning hours, corresponding with the lowest body temperature and greatest sleepiness. The correct option is D.

Step-by-step explanation:

The Window of Circadian Low (WOCL) occurs during the night. Specifically, WOCL refers to the period during the early morning hours when the body temperature reaches its lowest point.

This time is typically associated with the greatest sleepiness and the least alertness in a 24-hour period.

Evidence for this can be found in charts that illustrate the circadian change in body temperature over time, such as FIGURE 4.2 showing body temperature peaking in the afternoon and reaching its lowest during the early morning hours. The correct option is D.