What is dementia?

Dementia is not a single disease. It is a word for a group of symptoms caused by different conditions that affect the brain over time, including Alzheimer’s disease and vascular dementia ^{[World Health Organization 2023]} .

What it affects

Dementia affects thinking, memory, language, and the ability to do everyday tasks. It can also change mood and behaviour. Symptoms usually start gradually and slowly get worse over months and years ^{[National Institute on Aging (NIA) 2022]} .

Common early signs include:

• Forgetting recent events or conversations
• Losing track of dates, time, or familiar places
• Struggling to find the right words
• Finding it harder to plan, organise, or make decisions

It is more than memory

Dementia is not just “memory loss.” Many people also notice changes in attention, language, and confidence. A person can still enjoy life, learn new routines, and stay connected - especially with support, structure, and patience ^{[World Health Organization 2023]} .

Getting a diagnosis and support

If you are worried about yourself or someone else, the first step is to speak to a doctor. A clear diagnosis helps you get the right treatment, plan ahead, and access support services ^{[National Institute for Health and Care Excellence (NICE) 2018]} .

Care works best when it is tailored to the person - their strengths, history, and preferences - rather than one-size-fits-all ^{[National Institute for Health and Care Excellence (NICE) 2018]} .

Common types

Dementia is an umbrella term. The most common underlying conditions include:

• Alzheimer’s disease - the most common cause.
• Vascular dementia - related to blood-flow problems in the brain.
• Lewy body dementia - can include movement and visual changes.
• Frontotemporal dementia - often affects behaviour or language first.

How it may progress

• Changes usually begin gradually and develop over months and years.
• Early on, many people live well and independently with support.
• Needs change over time, so plans should be reviewed regularly.
• Every person’s experience is different.

Living well with dementia

• Keep familiar routines and meaningful activities.
• Use memory aids like calendars, notes, and labels.
• Stay socially and physically active where possible.
• Adapt the home to support orientation and safety.

Supporting a person with dementia

• Communicate calmly, simply, and with patience.
• Focus on feelings, not correcting every fact.
• Offer choices to preserve dignity and control.
• Look after the caregiver’s wellbeing too.

How this site helps

This site focuses on small, repeatable daily steps. Pick one thing today from Practice, or play a calm game. Progress comes from gentle, regular practice - not from doing everything at once.