My body is healthy and strong.

There is a whole category of work your body does that produces no sensation at all.

Inside a cast, bone knits back across a break at a pace nobody can perceive. You wear the thing for six weeks, bored, convinced nothing is happening, and then it comes off and the bone is whole.

Health is not only the days you feel capable. It is the machinery running underneath the days you do not — unhurried, unsupervised, entirely indifferent to whether you believe in it this morning.