What long-term change can occur in the brain with regular exercise?

Decreased gray matter density.

Increased risk of neurodegenerative diseases.

Increased production of neurotrophic factors.

Reduced connectivity in brain networks.

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Answer and Solution

Answer

C. Increased production of neurotrophic factors.

Solution:

Regular exercise can increase the production of neurotrophic factors, supporting brain health and promoting new neuron growth. The other options describe negative outcomes.

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