Which of the following best describes the normal adult brain?
A) As we age, we typically experience shrinkage in brain volume and weight.
B) Significant loss of neurons begins in middle adulthood and continues.
C) No new neurons form beyond the age of 50.
D) Broad intellectual capacities remain intact throughout our lives.

Question

Quizplus · Accepted Answer

While the brain may experience some shrinkage with age, this is not a universal experience and can be influenced by factors such as lifestyle and genetics. While some neuronal loss may occur with age, the brain has the ability to adapt and reorganize, and significant cognitive decline is not inevitable. Furthermore, research has shown that new neurons can continue to form throughout adulthood in certain brain regions, particularly in response to learning and exercise. While specific cognitive abilities may decline with age, overall intellectual capacities do not necessarily diminish and may even continue to develop with age.

Which of the Following Best Describes the Normal Adult Brain