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Which of the options below may be caused by obesity?

  • A

    Sleep apnea.

  • B

    Reduced intellectual performance.

  • C

    Weakened immune system.

  • D

    Depression.

Learning Objective 040.02.03.03.13: State the following harmful effects obesity can cause: possibility of developing coronary problems; increased chances of developing diabetes; reduced ability to withstand G-forces; development of problems with the joints of the limbs; general circulatory problems; reduced ability to cope with hypoxia or decompression sickness; sleep apnoea.


This learning objective outlines what we can expect to see in the exam, and it is debatable as whether obesity weakens the immune system, but it seems that EASA believe that it does not.

In obese individuals, fat deposits in the upper respiratory tract narrow the airway; there is a decrease in muscle activity in this region, leading to hypoxic and apneic episodes, ultimately resulting in sleep apnea.

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This question has appeared on the real examination, you can find the related countries below.