Telegraph.co.uk | One hour of exercise a week 'can halve dementia risk' Telegraph.co.uk One in three people will develop dementia in their lifetime, and a rapidly ageing population means that the numbers are forecast to double within two decades. More than 800,000 people in the UK have a form of dementia — most commonly Alzheimer's ... Dementia risk falling for elderly in the West: Better education and drugs keep ... Worldwide Alzheimer's and Dementia Epidemic Grows, Including ... Smell test may detect early stages of Alzheimer's disease, studies show |