Singles 'face Alzheimer's risk'

Blood pressure 'link to dementia'
Controlling blood pressure from middle-age onwards may cut the chances of developing dementia, say researchers.

Tofu 'may raise risk of dementia'
Eating high levels of some soy products - including tofu - may raise the risk of memory loss, research suggests.

'Good' cholesterol dementia risk
Too little of one type of cholesterol has been linked by research to memory loss and Alzheimer's disease.

Painkiller may cut dementia risk
Long-term use of ibuprofen may reduce the risk of developing Alzheimer's disease, a large US study reports.

'Big brain' keeps dementia at bay
An Alzheimer's study suggests sufferers don't show dementia symptoms when their brain's hippocampus is larger.