If Your Brain Hasn’t Felt Quite Like “Your Brain” Since Menopause, There’s A Reason For That

You know her name. You’ve known her for years. But suddenly you’re standing there, waiting for it to come back.

Or you’re halfway through a sentence when the word you wanted simply disappears.

You walk upstairs. Why did I come up here?

You read a page of your book and realise your eyes have gone over every word — but almost none of it seems to have stuck.

Someone tells you something. Ten minutes later: “Sorry, what did you say?”

And perhaps you’ve caught yourself wondering something you never expected to: “What is happening to my brain?”

Hot flushes are one thing — you were warned about those. Changing periods? Fine. Poor sleep? You knew that might happen. But when your thinking starts feeling different, that can get your attention in a completely different way.

The good news is there’s a fascinating explanation for why so many women describe changes in memory, concentration and mental sharpness around this stage of life. And it starts with something most of us were never taught.

Most women spend decades thinking of oestrogen as a “female hormone” — periods, pregnancy, fertility, menopause.

But your brain has been responding to oestrogen too. For decades. Oestrogen interacts with systems throughout the brain involved in how brain cells communicate, use energy and function.

So when oestrogen begins fluctuating during perimenopause — and later falls — the change isn’t happening in isolation. The environment your brain has been working in is changing too.

Which makes some familiar complaints rather more interesting. The missing word. The wandering concentration. The information that doesn’t seem to stick. The thought that disappears halfway through a sentence.

This is why simply calling everything “brain fog” doesn’t tell us very much.

Imagine you read three pages of a book tonight. Tomorrow, you can’t remember what happened. We might call that “forgetfulness” — but there are several different places where things could have gone wrong.

Maybe you weren’t properly concentrating. Maybe the information never really went in. Maybe it went in but didn’t stick. Or maybe it’s still there, and you’re struggling to bring it back.

Those are different jobs. And once you understand them, “memory” starts looking very different.

It’s 3:17am. You’re awake. Again. You’re hot, so you throw the duvet off. Five minutes later you’re cold, so you pull it back on. Eventually you fall asleep. Then the alarm goes.

And now your brain is expected to spend the day remembering names, concentrating in meetings, making decisions and keeping track of everything everybody needs from you — on broken sleep.

Sleep and memory are closely connected. Your brain doesn’t simply switch off when you go to bed; sleep plays an important part in learning and memory. A bad night doesn’t necessarily end when you put your feet on the floor — it can carry into your concentration, your patience, your ability to learn and how easy it feels to remember things.

Now repeat that several nights. Add changing hormones. Then add one more ingredient.

Midlife isn’t exactly famous for being quiet. Work. Children. Teenagers. Older parents. Relationships. Appointments. Finances. A body that suddenly seems to have invented seventeen new ways to complain.

And somewhere in the middle of all that, you’re supposed to remember where you put your glasses — while wearing them.

Stress demands attention. So does everything else you’re trying to remember. Suddenly the occasional “What was I saying?” starts to make a little more sense.

This is what makes menopause brain health so interesting. There may not be one big switch marked MEMORY that’s simply been turned down. Instead, several things can be changing at once — hormones, sleep, stress, attention, and the way information is taken in and brought back.

Brain cells don’t work alone. They’re constantly communicating — passing signals, strengthening connections, responding to what you learn, using energy, adapting.

One of the chemical messengers involved in this communication is particularly interesting: acetylcholine. Don’t worry about remembering the name — remember what it does. Acetylcholine is involved in attention, learning and memory. It’s part of the communication system your brain uses when you’re taking information in and trying to remember it later.

And here’s where the menopause story gets even more interesting: oestrogen and the cholinergic system interact. The hormone you’ve had circulating for decades and one of the brain’s important communication systems aren’t two separate stories — they’re connected parts of a bigger picture.

Your brain isn’t a filing cabinet. You don’t learn your neighbour’s name and have your brain drop a little card marked SUSAN — NUMBER 14 into a drawer.

Learning actually involves changes in the connections between brain cells. Those connections can strengthen, weaken and adapt. Scientists have a word for this: neuroplasticity.

It sounds complicated. The idea isn’t: your brain can change with what you learn. Every new skill, every new name, every book, every conversation — your brain is constantly adapting.

Thinking feels effortless. But biologically, your brain is busy. It needs a constant supply of energy to keep billions of brain cells doing their jobs.

Normal energy use produces unstable molecules commonly called free radicals. Your body has antioxidant defences designed to keep them under control. When the balance shifts too far the other way, scientists call it oxidative stress.

So now we have several pieces of the puzzle:

• Brain-cell communication
• Learning and changing connections
• Energy use and oxidative stress
• Attention, retention and recall

And once you understand those pieces, one particular plant starts to become very interesting.

It’s called Bacopa monnieri — and its story didn’t begin in a modern supplement factory. Known traditionally as Brahmi, it has been used within India’s Ayurvedic tradition for thousands of years.

Its reputation became closely associated with things we’re still interested in today: memory, learning, concentration and mental function.

There’s a fascinating historical detail here. Ancient Indian education relied heavily on oral learning. Knowledge wasn’t always sitting in a book waiting to be checked — students were expected to learn, retain and accurately recite long passages of information. Learning it. Holding onto it. Bringing it back. Sound familiar?

A long history makes for a good story. The really interesting part came much later.

Forget tradition for a moment. What happens when you actually give Bacopa to people and test their memory? That’s what modern researchers started doing. One group receives Bacopa, another receives a placebo, then cognitive tests measure specific parts of memory and thinking.

Not “do you feel cleverer?” — actual measures, like:

• Verbal learning†
• Retention of newly learned information†
• Delayed recall†
• Memory free recall†
• Attention and other cognitive measures†

Take it in. Learn it. Hold onto it. Bring it back. Suddenly those research terms don’t sound quite so abstract.

Bacopa contains naturally occurring plant compounds called bacosides. These have become an important part of researchers’ attempts to understand how Bacopa interacts with the brain — and the research takes us straight back to the systems we’ve just been talking about.

It doesn’t feel like coffee. Take caffeine and you know about it — a kick, a change in energy, maybe a little too much enthusiasm about answering emails. Bacopa is different. You might take your capsule in the morning and feel absolutely nothing.

That’s why looking for a “feeling” can be the wrong way to judge it. Instead, think about ordinary moments:

• The word that comes without as much chasing
• The name you bring back
• The chapter you still remember tomorrow
• The detail from yesterday’s conversation that stuck
• The thought you manage to hold onto while somebody interrupts you

Small things — but they’re the things memory is actually made of.

Spend five minutes shopping for “brain supplements” and you’ll see what happens. 15 ingredients. 20. 25. Huge milligram numbers. Proprietary blends. Caffeine. Stimulants. Ingredients sprinkled in seemingly because somebody once mentioned them on a podcast.

We went the other way. 300mg standardised Bacopa. One capsule a day. No caffeine. No stimulants. No mystery blend. Because if Bacopa is the ingredient you’re interested in, Bacopa should actually be the point.

There’s another reason our full Koya supply lasts 12 weeks: 12 weeks appears repeatedly in the Bacopa research.† So rather than taking it for a few mornings and wondering whether anything happened, we prefer a much simpler approach.

Your sleep. Your bones. Your heart. Your muscles. What you eat. How much you drink. How you exercise. What you want the next 20 or 30 years to look like.

Maybe your brain belongs in that conversation too. Because your brain isn’t just responsible for remembering where you left your phone — it’s behind the conversation you follow, the book you enjoy, the new thing you learn, the decision you make, the story you remember, the name you bring back, and the people and details that make your life yours.

You spend decades relying on it without giving it much thought. Menopause may simply be the first time it makes you stop — and pay attention.