Crystallized intelligence, the ability to use learned knowledge, continues to improve even into a person's 60s and 70s.
Sources
- 14 Surprising Facts About Growing Older No One Ever Told You (webmd.com)
- https://news.harvard.edu/gazette/story/2015/03/smarter-by-the-minute-sort-of/ (news.harvard.edu)
- https://www.psychologicalscience.org/observer/the-cognitive-upside-of-aging (psychologicalscience.org)
- https://www.sciencedirect.com/topics/neuroscience/fluid-and-crystallized-intelligence (sciencedirect.com)
- https://www.sciencedirect.com/topics/computer-science/crystallized-intelligence (sciencedirect.com)
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