Same or similar experience here. When I was younger I was aware of the strains of thinking,"harder", "outside the box", "deliberately to explore new concepts or paradigms". As I have recently turned 50 the toll for the same exercises seems much higher and almost debilitating. Memorization and reading have similar effects but not the same degree. Anything creative, analytical, or especially if it's a cross section of the two can be more than tiring but actually physically painful, i.e. headache, "false" eye strai... (read more)
Same or similar experience here. When I was younger I was aware of the strains of thinking,"harder", "outside the box", "deliberately to explore new concepts or paradigms". As I have recently turned 50 the toll for the same exercises seems much higher and almost debilitating. Memorization and reading have similar effects but not the same degree. Anything creative, analytical, or especially if it's a cross section of the two can be more than tiring but actually physically painful, i.e. headache, "false" eye strai... (read more)