Ethan

I balanced on one leg and one arm, palm and sole sinking into the blue yoga mat. Keeping my breathing measured, I slowly switched to downward dog yoga position, then back up into warrior one.

The muscles in my back protested at first, then unkinked one by one. With careful deliberation, I leaned forward until I balanced on just one leg, arms stretched out over my head.

My phone rang in the other room. With a grunt of effort, I returned to a bipedal ...