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Definitions:
Ages 65
Often marks the conventional threshold for old age, signifying the typical retirement age in many countries and eligibility for senior benefits.
IQ Scores
Quantitative measures of a person's intelligence relative to a statistically normal curve.
Cross Section
A representation of a section or surface exposed by making a straight cut through an object or material, often used in scientific and engineering contexts.
Age-related Changes
Physical, cognitive, and psychological modifications that occur in individuals as they grow older, impacting their abilities and health status.
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