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Some studies suggest that IQ may diminish with age due to declines in fluid intelligence and physical health issues, while other studies suggest that overall IQ remains stable, with specific aspects like Performance IQ potentially increasing.
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The relationship between IQ and aging is a complex topic that has been explored through various studies. Researchers have investigated how different types of intelligence, such as fluid and crystallized intelligence, change with age and what factors might influence these changes.
Heritability and Stability of IQ with Age:
Impact of Physical Health on Fluid Intelligence:
Stability of IQ in Specific Populations:
White Matter Damage and Cognitive Decline:
Early-Life IQ and Later-Life Mental Health:
Early-Life IQ and Subjective Age:
Early-Life IQ, SES, and Later-Life Health:
The research indicates that while certain aspects of intelligence, such as fluid intelligence, may decline with age, this decline is significantly influenced by physical health. Crystallized intelligence tends to remain stable. Early-life IQ plays a crucial role in determining cognitive and health outcomes in later life, often mediated by factors such as physical health, socioeconomic status, and personality traits. Overall, IQ does not necessarily diminish with age, but its trajectory can be influenced by various factors.
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