C) may remain the same in size.
D) may be damaged.
5. Porter and Landfields research shows that
A) the change in the levels if adrenal hormones has nothing to do with the degree of brain aging.
B) the change in the levels of adrenal hormones has a lot to do with the degree of brain aging.
C) the long-term stress will gradually make the hippocampus worse.
D) None of the above is correct.
Key: DBACB
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