In my previous Perspectives, I enumerated several ways to exercise your brain and boost its capacity without expending too many calories or too much effort. You may recall that the results of such methods were controversial and minimally helpful at best. Before starting this vignette, I need to confess that I used to hate physical exercise. I remember failing the physical education courses in high school several times and spending long vacations in the library writing reports on the history of the Olympic Games to make up for my bad grades. When I turned 50 years of age, I made an appointment to see a doctor and was surprised at finding myself in the Geriatric Medicine Building. He recommended, as he does for all "senior" individuals, that I exercise, and now I do it regularly at least 4 times per week. Truth be told, I feel more attentive and even smarter if I do it before going to work.
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