Brain Race

A paper in Nature Human Behaviour re-examined the oft-repeated conclusion that human cognition slows from the age of 20 onwards (https://www.theguardian.com/science/2022/feb/17/brains-do-not-slow-down-until-after-age-of-60-study-finds). The study used data from more than 1 million people in the Harvard Project Implicit tool. This was designed to collect data and educate people about their biases on gender, race etc. The tool carried information from people ranging between 10 and 80 years of age. The paper suggested that the speed of mental processing remains almost constant, until the age of 60. The authors concluded that people's brains only appeared to slow from their 20's, because they become more cautious as they age. This, unfortunately, doesn't improve my self-esteem (I am 76).