The No. 1 Habit That Slowly Dulls Your Sharp Mind, By A Psychologist - Forbes

New research reveals the surprising habit that quietly dulls a sharp mind — and it's not neglect, it's the competence you've already built up over the years.

It isn't neglect or laziness that erodes a sharp mind it's the accumulating stock of things you've already gotten very good at.
getty
Most accounts of a mind going dull revolve around the same expl…