Introduction
Dementia
is a syndrome consisting of a number of symptoms that
include loss of memory, judgment and reasoning, and changes
in mood and behaviour. These symptoms may affect a person's
ability to function at work, in social relationships
or in day-to-day activities. Sometimes symptoms of dementia
can be caused by conditions that may be treatable, such
as depression, thyroid disease, infections or drug interactions.
If the symptoms are not treatable and progress over time,
they may be due to damage to the nerve cells in the brain.
Alzheimer's disease, the most common form of dementia, accounts
for 64 per cent of all dementias in Canada. The features
of Alzheimer's disease include a gradual onset and continuing
decline of memory, as well as changes in judgment or reasoning,
and the inability to perform familiar tasks.
Sometimes
a person may have symptoms such as sudden onset of memory
loss, early behaviour changes, or difficulties with speech
and movement. These symptoms may suggest a dementia other
than Alzheimer's disease.
A person should seek a thorough medical assessment if
any of the above symptoms are present.
Regardless
of the dementia, individuals can obtain information and
support from the Alzheimer
Society.
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