Sir David Nicholson has signed a wall at an NHS conference to "pledge to become a dementia friend," someone who is trained to help spot the early signs of the disease.
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For the second year running, Sandbanks has been identified as Britain's most expensive seaside location.
It will be drier and brighter in the south, with temperatures remaining high.
The well-respected foreign policy hawk enjoyed his greatest successes as national security adviser to President Jimmy Carter.