Recently, alarmed at my brain’s seemingly swift degeneration (not to mention my impatience, distractedness, and maddening forgetfulness), I decided to try a different kind of mental exercise: meditation. It seemed unlikely that simply sitting, closing my eyes, and focusing on my breathing could help. But after only a couple of weeks — results are quick — I was starting to believe that the best thing to keep my mind calm, cheerful, flexible, and focused is to do nothing, for 15 minutes a day. Meditation made me feel both relaxed and more energetic. I developed a bit of distance between events and my reactions. Someone cut me off in the car? Maybe he’s having a bad day. A promising date didn’t blossom into a romance? Perhaps it’s his problem, not mine. Even at this early stage, I’ve noticed I’m much more able to let go of judgments of myself and others.