David Cameron has reiterated his support for ramping up efforts to find a cure, insisting that it should be seen as a disease, rather than as a "natural sign of ageing".
Speaking on Radio 4's You and Yours, he said: "It’s a disease, like other diseases, that medicine should be really marshalling its efforts to crack and to conquer...I think if all the advanced countries of the world actually get their scientists to focus on this, we can make a difference."
The Government is doubling the funding for dementia research to £66m, but Mr Cameron called on other countries to follow the UK's lead and "to work together" to find a cure.
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One of the great tragedies of the First World War is the number of youths who lied about their age to enlist particularly in the Royal Navy.