During a geriatrics conference, discussion was focused on age-related changes to brain size and cognitive functioning. Which of the following summaries is most accurate for this discussion?
a) The brain will remain the same size, and cognitive function can remain the same if the person keeps active.
b) Brain structure and cognition will decline slightly.
c) Brain structure will be drastically reduced, and cognitive functioning will decrease.
d) The brain becomes smaller and lighter with age, and brain cells begin to decline.
Answer: d
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