Bests & Worsts Reviews from Amazon

Our doctors always say to get more exercise. We always yawn and say of course; we've heard it all before. And then we are mediocre in our follow up. After reading Spark my entire viewpoint has changed. Exercise is a master key to brain functioning. Cholesterol and other system problems caused by lack of exercise are a bit ambiguous since we often can't directly feel them until we manifest some disease. Brain functioning is something else entirely. We can feel an almost immediate change after aerobic exercise. After reading Spark I definitely have become a six day a week exerciser. I need my brain functioning as well as possible, and the data in this book has made a believer out out of me.