On his blog, Charles Stross talks about the mundane irritations and accumulated friction of a life lived past age 50 or so:
Beyond the obvious (gross physiological deterioration and pathologies of senescence), what are the psychological symptoms of ageing?
I tend to be somewhat impatient or short-tempered these days. Examples: getting worked up about people obstructing a sidewalk in front of me, or carelessly blowing smoke over their shoulder and into my face, walking while texting … you know the drill. This I put down largely to the chronic low-grade pain of the middle-aged body: joints that creak and pop, muscles that need an extra stretch, sore feet. […]
My memory, as previously noted, is a sieve. Partly I find myself living in a cluttered cognitive realm: I have so much context to apply to any new piece of incoming data. If middle-aged people seem slow at times it may not be because they’re stupid (although stupidity is a non-ageist affliction) but because they’re processing a lot more data than a young mind has on hand to digest. That shop window display? You’re not just looking at this seasons clothing fashions, but integrating changes in fashion across multiple decades and recognizing when this stuff was last new. (And if fashion is your thing, you’re trying to remember how far back in the wardrobe you hung it last time you wore it, all those years ago.) A side-effect of this: when experiencing something familiar through long repetition you forget it — you don’t remember it as a new experience but merely as an instance of a familiar one and (eventually) as nothing at all. (For those of you with a workday routine, this can cut in quite early: how well do you remember your last commute to work? If you do remember it, do you remember it only because it was exceptional—a truck nearly t-boning you, for example?)
An intersecting effect of the aches and pains and the difficulty retrieving information is that you have to focus hard on tasks — it’s hard to execute a day with six or seven distinct non-routine activities in it, because that requires planning and planning requires lots of that difficult mental integration. Planning is exhausting. Instead you focus on maintaining routines (get up, brush teeth, take meds, shave, use toilet, make coffee … check. Go to gym: check. Eat lunch: check. Work at desk: check …) and scheduling one or two exceptional tasks. Mental checklists help a lot, but you run into the sieve-shaped memory problem again: this is where digital prosthesis (or an overflowing filofax) come in handy.
Your perspective on current events changes. Take the news media. Everything new is old after a time: you see the large-scale similarities across decades even without becoming a student of history. Today’s invasion or oil crisis is just like the one before last. Our current political leadership are stuck in the same ideological monkey’s-paw trap as their predecessors the last time their party was in power. And so on. So you tend to discount current events and lose interest in the news until something new happens. (If you’re wondering why I’m obsessively interested in the Scottish independence thing this year, it’s because it’s a disruptive event: nothing like it has happened in UK politics for a very long time indeed. It’s fresh.)