Die kognitive Fähigkeit wird nach dem 3. Lebensjahr zunehmend stabiler, studiert die Studie. Die kognitive Fähigkeit bezieht sich auf die Fähigkeit einer Person, Wissen zu erwerben, zu denken, zu begründen, Probleme zu lösen und sich an neue Situationen anzupassen.

I’ve linked to the news release in the post above. In this comment, for those interested, here’s the link to the peer reviewed journal article:

https://www.pnas.org/doi/10.1073/pnas.2426531122

From the linked article:

**Cognitive ability becomes increasingly stable after age 3, study finds**

An analysis of data from the Colorado Longitudinal Twin Study suggests that general cognitive ability tends to be highly stable across the lifespan, but this stability only emerges after about age 3. Measures of cognitive ability taken during infancy were associated with cognitive ability in adulthood, but only weakly. The study was published in PNAS.

**Cognitive ability refers to a person’s capacity to acquire knowledge, think, reason, solve problems, and adapt to new situations**. Individuals differ in these abilities, and such differences are meaningful even in early childhood, as they are linked to academic achievement. Higher cognitive ability is generally associated with better school outcomes. It also contributes to job performance, particularly in roles that require complex reasoning, quick learning, or problem-solving.

People with higher cognitive ability tend to make more informed decisions, as this capacity helps them weigh options and anticipate consequences more effectively. Cognitive ability also influences health-related behaviors, since individuals with higher ability are typically better at understanding medical guidance and managing long-term conditions. Research indicates that cognitive ability correlates with income, occupational status, and career advancement, making it a significant factor in socioeconomic mobility. It also shapes social interactions by supporting communication skills, perspective-taking, and conflict resolution.

TIL that most adults aren’t over then mental age of 3