I spent most of last week parked in my chair. I was working hard to finish the first draft of my new book. On the day before I turned it in, I sat at my desk for 12 hours. It was no surprise that my back was sore—really sore—by the end of the day.
My first instinct was to buy a better chair. But after reading an article by Dean Karnazes in Runner’s World, I realized that the real problem was the sitting itself.