It’s a pattern of actions and activities that many consider to be ‘obvious’ in this day and age. We are also talking about events or actions that are no longer considered special and that recur on a regular basis. A few examples are: eating, sleeping, working, studying, sports and cleaning house.
However, night blindness, migraines, fogged up glasses and others are also part of daily life for some of us. These things no longer surprise us, but they still annoy us.