Exercise. The more I read about it, the more I realize how important it is. I recently finished a book, “Stronger: The Untold Story of Muscle in Our Lives,” by Michael Joseph Gross. He postulates, rightly so, that we often separate the mind from the body — as if your brain is just an independent organ on top of a robot. When you consider this, it’s a funny way to think about what we do, but it’s widespread in so many articles, books and viewpoints. By the way, the brain is an
