Colorado CNA Practice Exam

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Prepare for the Colorado CNA Exam with expert-designed quizzes. Learn with helpful tips and multiple choice questions, complete with hints and detailed explanations. Ace your certification!

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Which system's weakening is a common immune change related to aging?

Cardiovascular system
Digestive system
Immune system
Nervous system

The correct answer is: Cardiovascular system

As we age, our immune system naturally weakens due to a decrease in the production of immune cells and a decrease in their function. This weakening of the immune system can leave us more vulnerable to infections, diseases, and illnesses. While all systems in the body can be affected by aging, the cardiovascular system is particularly impacted as the decrease in immune function can lead to a higher risk of heart disease and other cardiovascular issues. The digestive system can also be affected, but primarily due to lifestyle factors rather than direct aging-related changes. The nervous system is not directly related to immune changes and is more commonly impacted by aging through degenerative neurologic disorders. Therefore, the cardiovascular system's weakening is a common immune change related to aging.