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Why should heavy, high-fat meals during a long shift be limited if you struggle to stay alert?
- A.Heavy meals are the main cause of all fatigue
- B.Large meals can increase post-meal drowsiness and make an existing sleep debt harder to fight
- C.Small meals eliminate the need for sleep
- D.Meal timing has no effect on any driver
Correct answer
B. Large meals can increase post-meal drowsiness and make an existing sleep debt harder to fight
Why
A big meal, especially combined with the body's afternoon dip, can intensify sleepiness. Lighter, regular meals plus proper sleep are a more reliable strategy than eating heavily and hoping stimulants offset it.
Manual topic: Fatigue - Alertness Habits · From the General Knowledge practice bank (GK-265).