Cognitive Problems in MS: What’s Happening to Your Brain (and What You Can Do About It)

— Updated: May 31, 2025

Over the past two decades, more people with MS have said something that’s hard to explain:

“My brain just doesn’t feel like it used to.”

If you’ve felt forgetful, scattered, or mentally slow — it’s not in your head.

Well, actually… it is in your head.

But not because you’re lazy or getting old.

It’s your MS affecting how your brain works.

What Is Cognitive Dysfunction in MS?

Cognitive function means how you think, remember, focus, decide, and learn.

In MS, all these abilities can slowly (or suddenly) get harder.

Why? Because MS doesn’t just affect your body. It affects your brain, too.

You might notice:

• Forgetting what you were about to say
• Struggling to find words
• Slower thinking
• Trouble focusing
• Feeling mentally foggy
• Finding it hard to plan or solve problems

Sound familiar?

This isn’t ageing. It’s MS disrupting your brain’s communication.

You’re Not Alone

Cognitive problems are common in MS.

A 2012 study by Jongen, Ter Horst, and Brands found 40–65% of people with MS have them. Most deal with mild symptoms. But 5–10% live with more serious struggles.

But let’s be honest — what’s “mild” on paper might feel like a mental storm in real life.

It depends on where your brain is affected, and how your MS is progressing.

What’s Behind These Cognitive Changes?

1. Brain Lesions

MRI scans often show lesions — scars — in the brain, especially near the ventricles. These scars interrupt how your brain processes info. That affects memory, focus, and speech.

2. Depression

Depression isn’t just sadness. It changes the brain’s chemistry. It slows your thinking, weakens memory, and makes learning harder.

And here’s the kicker: MS increases your risk of depression.

It’s like a vicious loop — depression worsens cognitive function, which fuels more emotional stress.

And yes, some MS meds can trigger or worsen depression. But don’t stop meds on your own — talk to your neurologist first.

Real-Life Example

Fatima, 34, was diagnosed with MS six years ago. She runs a small baking business from home.

She told me:

“I forgot to send a birthday cake I’d promised to a client. I’d written it down, but my brain never clicked back to it. I sat there crying, feeling like a failure.”

But she wasn’t failing.

Her brain was simply under pressure from something out of her control.

Signs You Might Be Struggling

Here’s what MS-related brain fog can look like in everyday life:

• Losing your train of thought mid-sentence
• Struggling to find words you know you know
• Forgetting appointments or to-dos
• Trouble multitasking
• Feeling overwhelmed by small choices
• Zoning out during conversations
• Relying heavily on reminders
• Feeling like planning anything drains you

If that’s happening, don’t ignore it.

Early support can make a big difference.

What Can Help?

There are two main ways to manage these cognitive symptoms.

1. Medication

No cure yet, but some medications may help.
Your doctor might suggest something that boosts brain function or treats depression.

💡 Please don’t self-medicate. Always ask your neurologist first.

2. Cognitive Rehabilitation

Now this is where the real progress can happen.

You work with therapists to build strategies that support your memory and attention.

They include:

• Neuropsychologists
• Speech and language therapists
• Occupational therapists
• You might do memory games, planning tasks, or mental exercises.

It’s like a gym for your brain. 💪

Easy Coping Tips

While you’re working with your medical team, here are a few simple things that help:

📝 Write things down — Use your phone, sticky notes, or a journal.
⏰ Use reminders — Alarms, apps, or even a talking clock.
🧘🏽 Reduce stress — Avoid crowded or overwhelming settings.
🧠 Take breaks — Your brain needs time to reset.
🫂 Ask for help — Don’t do this alone.
💬 Talk to someone — Counselling can help rebuild confidence.

A Word From an Expert

Dr. Ralph Benedict, neuropsychologist and MS specialist, said:

“Cognitive issues in MS aren’t just common — they’re a core symptom. But they are also treatable, and many people regain a sense of control with the right tools.”

You’re Doing Better Than You Think

If your memory feels weaker…
If you forget names, words, or where you left your phone…
If focusing feels like trying to see through fog…

It’s not because you’re failing.

You’re fighting something invisible.

And you’re still showing up, doing your best.

That’s not weakness — that’s strength.

Be kind to your brain.
Talk to your doctor.
And remind yourself: You’re not broken.

You’re navigating something hard with courage.

• Feeling like planning anything drains you

If that’s happening, don’t ignore it.

Early support can make a big difference.

What Can Help?

There are two main ways to manage these cognitive symptoms.

1. Medication

No cure yet, but some medications may help.
Your doctor might suggest something that boosts brain function or treats depression.

💡 Please don’t self-medicate. Always ask your neurologist first.

2. Cognitive Rehabilitation

Now this is where the real progress can happen.

You work with therapists to build strategies that support your memory and attention.

They include:

• Neuropsychologists
• Speech and language therapists
• Occupational therapists

You might do memory games, planning tasks, or mental exercises.

It’s like a gym for your brain. 💪

Easy Coping Tips

While you're working with your medical team, here are a few simple things that help:

📝 Write things down – Use your phone, sticky notes, or a journal.
⏰ Use reminders – Alarms, apps, or even a talking clock.
🧘🏽 Reduce stress – Avoid crowded or overwhelming settings.
🧠 Take breaks – Your brain needs time to reset.
🫂 Ask for help – Don’t do this alone.
💬 Talk to someone – Counselling can help rebuild confidence.

A Word From an Expert

Dr. Ralph Benedict, neuropsychologist and MS specialist, said:

“Cognitive issues in MS aren’t just common—they’re a core symptom. But they are also treatable, and many people regain a sense of control with the right tools.”

You’re Doing Better Than You Think

If your memory feels weaker…
If you forget names, words, or where you left your phone…
If focusing feels like trying to see through fog…

It’s not because you’re failing.

You’re fighting something invisible.

And you’re still showing up, doing your best.

That’s not weakness—that’s strength.

Be kind to your brain.
Talk to your doctor.
And remind yourself: You’re not broken.

You're navigating something hard—with courage.