What most men over 50 don't hear about the glass they empty without noticing

Something done while walking never becomes part of the day.

It happens on the way to something else, standing up, halfway through a sentence — and afterwards there is nothing to recall, because nothing took place anywhere in particular. The letters arriving at the editorial desk from readers over 50 keep circling that detail. Not that they were forgetting to do it. That they were doing it in transit, which turned out to be the same as it never having been in the day at all.

• The overlooked role of hydration and light movement

  Both come up constantly in the correspondence, and almost always as things that had been happening on the move rather than anywhere.

• A small routine anyone can fit into a busy morning

  Correspondents describe not adding anything, only giving an existing action a place to happen — which cost no additional minutes.

• A common belief about men over 50 — and what some are doing differently

  The assumption is that doing something in passing is efficient. Several readers describe having discovered it was closer to not doing it.

• What some readers over 50 mention about their evenings

  A recurring note is that the same adjustment was applied later at the other end of the day, once the earlier version had stopped requiring thought.