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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Police said they were closing the investigation into who sold the model and TV presenter the drugs which killed her.
Kids Company founder Camila Batmanghelidjh to leave the children's charity, blaming politicians 'ugly games' and austerity for her decision.
A prison officer - who was allegedly assaulted by a prisoner at a crown court - has died.