The constant, low-level concentration required to stay upright makes it impossible to think about anything else
I am sitting in my office, using a blue inflatable gym ball instead of a chair. This was recommended to me as a cure for certain occupational ailments, including neck pain, back pain and shoulder pain. The first time I reached across my desk for a pencil and ended up on the floor, I thought: this isn’t going to work.
But it does work. My neck has stopped hurting, my shoulders don’t ache and my core is permanently engaged. I rarely fall off the ball any more. After two weeks, I can balance on it with my feet in the air while drinking a cup of coffee.
