Express.co.uk | How to fight Alzheimer's: New study says improving sleep could slash rise of ... Express.co.uk “It is difficult to tease apart cause and consequence and as this study was carried out in healthy older people, rather than in those with dementia, it is not possible to conclude that disrupted sleep causes memory difficulties in the condition. This ... Poor sleep linked to toxic buildup of Alzheimer's protein, memory loss Poor sleep 'may cause Alzheimer's' Sleep problems link to Alzheimer's |