Types and causes There are many different types of dementia. The most common are:

Alzheimer’s disease – this is the most common form of dementia and accounts for between 50 and 70 per cent of all cases. It is a progressive, degenerative illness that attacks the brain.

Parkinson’s disease – this is a progressive disorder of the central nervous system, characterised by tremors, stiffness in limbs and joints, and speech impediments. Some people with Parkinson’s disease may develop dementia in the late stages of the disease.

Alcohol related dementia – is caused by too much alcohol, especially with a poor diet low in Vitamin B1 (thiamine). It can be prevented by avoiding alcohol abuse.

Vascular dementia – this is the broad term for dementia associated with problems of circulation of blood to the brain. more



What Is Dementia?

Dementia is not a disease, but rather an umbrella term for a variety of symptoms that may accompany or indicate certain diseases or conditions. Today over 60 different conditions are known to cause dementia symptoms. Symptoms may include impaired memory and confusion, difficulty in performing day-to-day or familiar tasks, and changes in personality, mood, and behaviour. When caused by disease or injury, dementia is usually irreversible; however, the symptoms may be reversible when caused by treatable conditions, such as: dehydration, constipation, infection, vitamin deficiencies and imbalances, pain, medication poisoning, brain tumours or depression. more


What is the difference between dementia and Alzheimer’s disease? Dementia is not a disease, but a broad term to cover a group of symptoms; the most common being memory loss. The most common cause of dementia is Alzheimer’s disease, a degenerative disease accounting for between 50 – 70% of all cases. To date, there is no medical cure or preventative for Alzheimer’s.

Dementia can happen to anybody - Most people with dementia are older, but it is important to remember that most older people do not get dementia. It is not a normal part of ageing. Dementia can happen to anybody, but it is more common after the age of 65 years. People in their 40s and 50s can also have dementia. more
Younger onset dementia - Younger onset dementia or early onset dementia refers to dementia which first emerges before a person reaches the age of 65. Younger onset dementia can occur in your 50’s, 40’s or even your 30’s. This section provides information that will help people to understand their symptoms and plan for the future.

Summary- Dementia is a progressive deterioration in a person's functioning. The most common cause is Alzheimer's disease but there are other causes including Parkinson's disease and Huntington's disease. Common early symptoms include memory loss, confusion, personality changes, apathy and withdrawal

Support services There is a wide range of community services to help both the person with dementia and their carers. These include:

National Dementia Helpline on 1800 100 500,Support and information groups, for people in the early stages of dementia and their carers Carer education and training programs Books, videos and other resources more



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