... workout. No.matter which category you selected, remember that mental fitness — your ability to concentrate, to reason, to visualize, to imagine, to make decisions, to solve problems, and to think ... No matter which category you have selected, remember that mental fitness — your ability to concentrate, to reason, to visualize, to imagine, to make decisions, to solve problems, and to think ... and gave great lunches; Peter Turney, who never failed to stimulate my brain; Barney Gilmore for generally being an all-round inspiration; Chris Sasaki for his insights; Ken Deaton for his real-time...