Research suggests the reason you feel like you're forgetting more isn't cognitive decline — it's that the sheer volume of trivial information you're expected to retain daily has increased exponentially while your brain's capacity hasn't changed at all

I turned 70 this year, and somewhere along the way I started leaving my reading glasses in the refrigerator. Not literally — but close enough. I'd walk into a room and forget why I went there. I'd lose a word mid-sentence that I'd used a thousand times. I'd reread the same paragraph in a novel and have no memory of reading it the first time. And like a lot of women my age, I quietly started to wonder: is this the beginning of something I can't stop?

It took me longer than it should have to question that assumption. I spent 32 years teaching high school English, and one thing that job teaches you — if nothing else — is to examine the evidence before you draw conclusions. When I finally did that with my own so-called forgetfulness, the picture looked very different from what I'd feared.

Researchers have been raising a flag that most of us have missed: the problem isn't that our brains are failing us. The problem is that our brains haven't changed at all, while the amount of trivial information we're expected to hold onto every single day has exploded. We're not forgetting more. We're being buried in more.

Your brain has not been upgraded

Here's something nobody tells you plainly enough: the human brain's working memory — the mental workspace where you hold information in the moment — has a capacity that hasn't meaningfully changed in thousands of years. Researchers generally agree it can hold somewhere between four and seven pieces of information at a time before something starts to fall out.

What has changed is the world around that brain.

Think about what a typical morning looks like now. Before you've had your first cup of tea, you've checked the weather app, scrolled past a dozen headlines, glanced at a text thread, seen a notification for a bill, entered a password, responded to an email, and half-processed a dozen advertisements. And that's before 8 AM.

Every single one of those small inputs takes up a slot in your working memory. Most of them are trivial — you don't actually need to remember what the notification said or which ad flickered past — but your brain doesn't automatically sort useful from useless in real time. It does its best to process all of it. And that effort has a cost.

The trivial information avalanche

I didn't grow up with a smartphone. I didn't have a loyalty card for every shop I walked into. I didn't have streaming service passwords, PIN numbers for multiple bank accounts, a work email, a personal email, a family group chat, and a weather alert system all demanding my attention before lunch.

My mother kept her important information in two places: her head and a little address book she kept in her top drawer. The volume of what she was expected to track daily was genuinely, measurably smaller.

That's not nostalgia talking — that's data. Studies on information consumption have found that the average person today processes roughly five times more information daily than someone did in 1986. Five times. And almost none of that extra load is meaningful. It's app updates and notification badges and account logins and the names of influencers your grandchildren mention.

Your brain is not lazier than your grandmother's was. It's running a much longer race while people keep adding hurdles.

Why forgetting the important things feels so alarming

Here's the part that genuinely unsettled me once I understood it: when your brain is overloaded with trivial input, it doesn't only lose the trivial things. The clutter interferes with the consolidation of things that actually matter.

Memory researchers describe something called cognitive load — essentially, the total burden on your mental processing capacity at any given moment. When that load is high, your ability to encode new information deeply goes down. You read something important, but your brain was already half-occupied with three other things, so it gets filed shallowly. Later, when you try to retrieve it, it's not there in the way you need it.

This is why you can forget a meaningful conversation but remember the exact jingle from a commercial you never wanted to hear. The jingle was repetitive and emotionally charged. The conversation happened while part of your mind was still chewing on something from your email inbox.

I notice this most in the evenings. After a full day of reading, writing, messaging, and the general noise of modern life, I find it harder to absorb new information. I've had to build a deliberate habit of stepping away from screens for at least an hour before I sit down to read something I actually care about. The difference in retention is noticeable. I'm not smarter at night — I'm just less cluttered.

What you can actually do about it

I want to be careful here, because I am not a neuroscientist. What I am is someone who spent decades watching people learn — or fail to — and who has spent the last several years paying close attention to what genuinely helps me think more clearly.

The first thing is ruthless reduction. I do not need seventeen browser tabs open. I do not need to check my phone before I've finished my morning tea and journal. I do not need to process every message the moment it arrives. The research supports this: reducing the volume of incoming information, especially in the morning, measurably improves focus and recall throughout the day. Your brain consolidates overnight. The morning hours are when that consolidation is freshest. Pouring noise into those first hours is like filling a clean glass with muddy water.

The second thing is writing things down — not to remember them, but to free yourself from trying. I have kept a journal for years, partly out of habit and partly because the act of writing something down signals to your brain that it can let go of actively holding that thought. Your notes become external memory. Your brain gets to rest.

The third thing is protecting genuine quiet. I take an evening walk every day regardless of weather, and I spend my early mornings in silence with my tea before anything else begins. That's not an accident and it's not indulgence — it's maintenance. The same way I stretch every morning to manage my arthritis, I protect silence to manage the noise.

And finally — and this is harder than it sounds — I've worked on making peace with selective forgetting. Forgetting where I put my glasses doesn't mean I'm losing my mind. It means I put my glasses down while thinking about something else. A brain that retains everything indiscriminately wouldn't be a superior brain. It would be a chaotic one.

The conclusion I wish someone had handed me sooner

If you're reading this and you've spent any time quietly worrying about your memory, I hope this is the piece of information that sticks: the world got noisier. Your brain did not get weaker. Those are two very different problems, and only one of them is actually yours to solve.

I watched my mother decline slowly from Alzheimer's in her final years. I know what genuine cognitive loss looks like, and I know how frightening that word is when it enters your thinking. The distinction between that and the ordinary, understandable fatigue of a brain trying to survive in a world of exponential information overload matters enormously — not just medically, but emotionally.

Be kind to yourself about this. Take your journal seriously. Take your quiet mornings seriously. Put the phone down and go for a walk. These are not small things. They are the ways you protect the mind you have — which, I promise you, is working far harder than you're giving it credit for.