Which of the Following Is TRUE About the Immune System

question 92

Multiple Choice

Which of the following is TRUE about the immune system and stress?

• A)NK cells are a type of white blood cell that is more likely to be present in high stress circumstances.
• B)Higher levels of NK cells in stressful situations indicate a weakened immune system.
• C)Immune system functioning increases with normal aging.
• D)Aerobic fitness is related to the presence of a lower level of senescent T cells.

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