In 2015, dementia overtook heart disease as one of the biggest killers in the UK.The word dementia refers to a set of symptoms that may include memory loss and difficulties with thinking, problem solving or language.The most common cause of dementia is Alzheimer’s disease. Ross Kemp has been raising awareness in his recent documentary, Living With Dementia, after his former on-screen mum and close friend Barbara Windsor revealed in 2018 that she was living with Alzheimer’s.