The question of whether intelligence quotient (IQ) invariably declines with age is a topic of enduring interest and misconception in psychology and public discourse. Many people assume that cognitive peak occurs in early adulthood, followed by a steady downhill trajectory. However, contemporary research paints a more nuanced picture, suggesting that the relationship between age and IQ is complex and multifaceted. This article delves into the science behind IQ and aging, examining the different components of intelligence, key research findings, and the various factors that influence cognitive change across the lifespan. By synthesizing evidence from longitudinal studies and expert analyses, we aim to provide a clear answer to the titular question and dispel common myths.
