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Question 6133

In general, drowsiness most often appears...

  1. in the early morning hours before dawn and in the early hours of the afternoon.
  2. during the middle of the morning and in the early hours of the afternoon.
  3. in the early morning hours and toward the end of the afternoon.
Show answer and explanation

Correct answer: in the early morning hours before dawn and in the early hours of the afternoon.

Your body clock has two periods of greater sleepiness. One is the pre-dawn hours, when your body expects to be asleep, with a peak between 3 and 5 in the morning. The other comes after lunch, in the early afternoon, from 2 to 4. The middle of the morning is not one of those periods.

Manual II. Cuestiones de Seguridad Vial