Daily Mail | Living in the North 'raises dementia risk' Daily Mail There are currently about 850,000 people with dementia in the UK, and the number is predicted to reach more than one million by 2025, according to the Alzheimer's Society. Research published last year found that older people with low levels of vitamin ... North-south dementia risk variation Living in the North 'raises dementia risk': Lack of vitamin D could be to blame |