Dementia is a syndrome (a group of related symptoms) associated with an ongoing decline of brain functioning. This may include problems with:
memory loss
thinking speed
mental sharpness and quickness
language
understanding
judgement
mood
movement
difficulties carrying out daily activities
There are many different causes of dementia. People often get confused about the difference between Alzheimer's disease and dementia.
Alzheimer's disease is a type of dementia and, together with vascular dementia, makes up the vast majority of cases.
People with dementia can become apathetic or uninterested in their usual activities, or may have problems controlling their emotions.
They may also find social situations challenging and lose interest in socialising. Aspects of their personality may change.
A person with dementia may lose empathy (understanding and compassion), they may see or hear things that other people do not (hallucinations).
Because people with dementia may lose the ability to remember events or fully understand their environment or situations, it can seem as if they're not telling the truth, or are wilfully ignoring problems.
As dementia affects a person's mental abilities, they may find planning and organising difficult. Maintaining their independence may also become a problem.
A person with dementia will therefore usually need help from friends or relatives, including help with decision making.
It's difficult to prevent back pain, but the following tips may help reduce your risk: do regular back exercises and stretches – your GP or a physiotherapist may be able to advise you about exercises to try stay active – doing regular exercise can help keep your back strong; adults are advised to do 150 minutes of exercise a week avoid sitting for too long when driving or at work take care when lifting – read some safe lifting tips check your posture when sitting, using computers and watching television – find out how to sit correctly and tips for laptop users ensure the mattress on your bed supports you properly lose weight through a combination of a healthy diet and regular exercise if you're overweight – being overweight can increase your risk of developing back pain