Understanding Dementia: A Practical Guide For Carers, Families, And Professionals

If you’ve ever supported someone living with dementia, you’ll know how quickly certainty can vanish. One minute things feel settled, the next you’re navigating confusion, emotion, or behaviour that doesn’t fit the person you thought you knew. I meet so many families who tell me, “I didn’t realise this could be dementia,” or, “No one explained what to expect.” In this article I want to bring clarity, not fear — and offer a way of seeing dementia that helps you understand the person rather than the condition.

What dementia actually is – and why so many people misunderstand it

Dementia isn’t one illness. It’s an umbrella term for symptoms caused by changes in the brain — and there are hundreds of types. Most families never hear that. They get a diagnosis of “dementia” without detail, which sends them searching online and often finding more fear than clarity.

The Alzheimer’s Society and NICE guidance both emphasise that the type and location of brain changes shape a person’s experience. Damage in different areas affects different abilities:

• Frontal lobe: changes in personality, impulsivity, or behaviour.
• Occipital lobe: visual-perceptual changes — colours, depth, movement.
• Parietal lobe: difficulties with reading, sequencing, numbers, or recognising left and right.

When we don’t understand the “where” of dementia, we can misread behaviour as stubbornness or decline, when it may be the brain doing its best to cope with reduced processing or sensory information.

The problem with the public picture

Most people’s understanding of dementia comes from media images focused on loss: memory fading, independence slipping away, a steady decline into confusion. These stories feel absolute, but they’re rarely complete. Many people live well with dementia for years when supported in a person-centred, compassionate way. The stereotype blinds us to what is still possible.

The reality I see every day

When I train carers or meet families, one thing becomes clear: fear isn’t caused by dementia itself, but by uncertainty. When people understand what’s happening in the brain, they respond with far more confidence and connection. A bit of knowledge creates a lot of dignity.

How to recognise early signs — beyond forgetfulness

Forgetfulness is one sign, but it isn’t the only one. Early indicators are often subtle changes in everyday patterns:

• Unexpected bruises from bumping into furniture due to visual-perceptual changes.
• Walking into hazards because peripheral vision has narrowed.
• Difficulty with reading, writing, or numbers in someone who previously excelled.
• Unexplained mood swings or anxiety in situations they once handled easily.
• Withdrawing from social activities because environments feel overwhelming.

I often tell families to look for change from baseline. Dementia disrupts the familiar — routines, responses, confidence — and noticing those shifts early helps you support the person holistically.

Why early support matters

Lots of families tell me they waited for someone to contact them after diagnosis, only to discover that no follow-up was coming. Support rarely arrives automatically. You often have to push for it — and knowing who to approach (GPs, dementia charities, occupational therapists, community groups) can prevent crisis later.

Training, especially early on, can make a big difference. Our Dementia Awareness Training gives carers, teams, and families a solid foundation in what dementia is and isn’t — helping you build confidence before challenges escalate.

How dementia affects memory — and why that changes everything

We talk as if people “lose their memory”, when actually different types of memory are affected differently. Understanding this reduces so much frustration and guilt.

• Episodic memory: personal events fade first.
• Semantic memory: factual knowledge becomes patchy.
• Procedural memory: habits and routines often stay strong.
• Emotional memory: one of the last to be affected.

This explains why someone might forget a name but still dance perfectly, or struggle to follow a story but smile when they hear music from their youth. Emotional memory is powerful — it anchors people even when details fade. That’s why meaningful engagement matters so much.

Connecting with the person they are today

As dementia progresses, people often connect more through feeling than facts. A gardener may no longer plant seeds, but the smell of soil or the warmth of sunlight can still bring joy. A reader may no longer follow chapters, but the texture of a book can trigger comfort and identity.

This is the heart of our Adaptive Caregiver Model — focusing on emotional truth rather than functional ability.

Common mistakes that unintentionally cause distress

Most carers want to do the right thing, but certain habits can create anxiety without us realising. These are patterns I see frequently:

• Approaching from behind: with peripheral vision changes, this can trigger fear and instinctive fight-or-flight reactions.
• Accidental infantilisation: phrases like “behave for me” or “good girl” feel patronising and erode dignity.
• Dismissing emotional truth: correcting someone’s reality (“You sold your house years ago”) rarely calms; it usually escalates distress.
• Labeling behaviour as challenging: often the behaviour is protective — the brain responding to fear, pain, confusion, or sensory overload.

Our role is not to judge the behaviour but to interpret it.

“I want to go home” — a moment every carer dreads

This phrase can pierce the heart, because “home” often represents safety, not a physical location. Instead of correcting, we can:

• Acknowledge the emotion (“I can see home feels important right now”).
• Offer gentle reasoning that doesn’t conflict with their reality.
• Explore the meaning behind the request — comfort, familiarity, escape.

Sometimes the best support is simply moving, walking, or changing the environment. It’s astonishing how often anxiety settles when the sensory load decreases.

Real-world snapshots that reveal the truth of dementia care

One gentleman I supported was “angry about his car”. Staff kept explaining he didn’t have one. But the car wasn’t the issue — he felt unsafe in the environment. When we reduced noise, adjusted light, and sat with him at eye level, the “car problem” vanished.

A woman I met in a care home no longer recognised her daughter but cried every time she heard a particular hymn. Her emotional memory was intact — and that was enough to maintain connection.

Who benefits from these approaches?

Whether you’re a family member, care worker, nurse, support worker, or community volunteer, these strategies make support safer, calmer, and more human. They align with best practice from Skills for Care and reflect what I teach across all our dementia courses.

When to seek more training and guidance

Training isn’t about ticking compliance boxes — it’s about improving real experiences for people living with dementia. If your team supports individuals with complex memory needs, sensory changes, or identity-specific challenges, consider exploring:

• Young Onset Dementia in Care
• Supporting LGBTQ+ Inclusion in Dementia Care
• Dementia Awareness Training

Further reading and trusted resources

• NICE Guidance
• National Autistic Society
• Skills for Care
• Alzheimer’s Society