Just under one in 10 (9%) of dementia sufferers will venture out at least once a month, according to a new report by the Alzheimer's Society.
The report also warns many dementia sufferers are unable to take part in activities they enjoyed before they developed the condition.
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Witnesses reported hearing a "huge bang" at the venue during the concert on Monday evening.
ITV News travels to Britain's eastern-most city to gauge how the electorate will be casting its votes.
Carefully choreographed campaigns can become unstuck because voters have the power to peel back a politician's veneer.