One of the individuals I was mentoring through an educational process gave me a book written by Richard Carlson entitled: “Don’t Sweat the Small Stuff . . . and It’s All Small Stuff.” Part of a series on ‘don’t sweat the small stuff,’ it advertised ‘Simple Ways to Keep the Little Things From Taking Over Your Life.’ I thought it was a wonderful title and we chuckled about it at the time. In retrospect, however, it is a particularly excellent perspective. Today I tried to recall some of the things that were worrying the student at the time and I cannot recall any of them. What did you worry about last year or the year before? Whatever they were, it likely doesn’t matter now—the worries and anxieties. The consequences to your brain and immune system, however, may matter a great deal. More tomorrow.