No they don’t. The brain atrophies when it is underused, but it does not wear out. At all. Cognitive ability, and in particular the ability to learn new stuff or adjust to new things declines with age (or “maturity”), but high mental activity protects you against this, so that your “peak” becomes longer and your mental decline slower.
No they don’t. The brain atrophies when it is underused, but it does not wear out. At all. Cognitive ability, and in particular the ability to learn new stuff or adjust to new things declines with age (or “maturity”), but high mental activity protects you against this, so that your “peak” becomes longer and your mental decline slower.