A new study challenges previous beliefs, suggesting that human brain functioning actually peaks between the ages of 55 and 60.
Published in the journal Intelligence, the research indicates that achievements like career success tend to climax later in life.
Dr Gilles Gignac, lead author from the University of Western Australia, attributes this peak to a combination of accumulated knowledge, judgment, and life experience.
While fluid intelligence may peak around 20, other cognitive abilities such as crystallised intelligence, emotional intelligence, and moral reasoning continue to improve with age.
The findings imply that individuals best suited for high-stakes decision-making roles are typically between 40 and 65 years old.