01/24/2026
Forget the idea that your brain peaks in your 20s. A new Australian study published in Intelligence found that overall mental functioning may actually peak between 55 and 60, driven more by gains in judgment, emotional control, and decision-making than raw speed. Researchers analyzed 16 psychological traits and found that while some abilities slow with age, others strengthen enough to improve overall cognitive performance well into later life. The takeaway challenges old assumptions about aging and productivity. Age is a poor proxy for capability, and experience, emotional regulation, and measured thinking may be the real cognitive superpowers.