Research suggests that beginning in the twenties and thirties:

Question

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Crystallized intelligence refers to acquired knowledge and skills, while fluid intelligence refers to the ability to think abstractly and solve complex problems. Research shows that in the twenties and thirties, individuals tend to have increased exposure to new information and experiences, which can lead to an increase in crystallized intelligence. However, as the brain ages, there is a decline in the ability to process new information and think abstractly, leading to a decrease in fluid intelligence.

Research Suggests That Beginning in the Twenties and Thirties