Habit 4: Continuously Learning and Keeping the Mind Genuinely Engaged
The brain is a dynamic, plastic organ that responds to how it is used throughout the entirety of life. The neuroscience of cognitive aging has established clearly that the people who maintain the sharpest cognitive function into their seventies and eighties are those who consistently challenge their brains with genuine novelty and intellectual engagement. The people who have never lost their genuine curiosity about the world, who still read with real interest, who still ask questions without assuming they already know the answer, are the people who describe their later years as full rather than diminished. This habit requires no equipment and no particular circumstances. It requires only the decision to remain genuinely curious rather than settled into the comfortable assumption that the important learning has already been done.
