What Is Dementia? A Plain-English Guide

A clear explanation of dementia: what it is, common types, early signs, and what to do if you are worried about memory.

In short

  • Dementia is a group of conditions that affect memory, thinking and everyday life.
  • It is not a normal part of ageing.
  • If you are worried, see your GP. The Alzheimer’s Society Support Line is 0333 150 3456.

What dementia means

Dementia is caused by diseases that damage the brain over time. It affects memory, thinking, language, mood and the ability to manage everyday tasks. It usually gets worse gradually, and it affects everyone differently.

Common types

  • Alzheimer’s disease, the most common type
  • Vascular dementia, linked to problems with blood flow to the brain
  • Dementia with Lewy bodies
  • Frontotemporal dementia, which can affect personality and behaviour first

Early signs

  • Forgetting recent events or repeating questions
  • Getting lost in familiar places
  • Finding it hard to follow conversations or find words
  • Struggling with money, bills or cooking
  • Changes in mood or confidence

What to do if you are worried

See a GP. Memory problems have many causes, some treatable. A diagnosis also opens the door to support and planning. The NHS dementia guide explains more.

Living well with dementia

Many people live well for years after diagnosis. Read our family guide to early memory loss and our page on companionship for people living with dementia.

Where to get help

About Livingsupported: we offer private, non-regulated companionship, home help and lifestyle support across South Manchester, Cheshire and Staffordshire. We do not provide personal, nursing or medical care, counselling or therapy. Request a free home visit or call 0161 250 5341.