How long can you sit in the same position before you need to move? For me, the answer is: about 20 seconds! Unless I’m deeply, deeply engaged in something, I’m either going to change positions or start to fidget. Even while watching something absolutely fascinating on TV, I’m going to go from sitting with my legs folded underneath me to sitting with my legs stretched onto the coffee table to lying on my right side to lying on my left side. And that’s all during an hour-long program! If I’m tired, I end up sitting on the edge of the sofa and, yes, fidgeting.