Drugs commonly used to treat patients at risk from heart diseasemight protect against dementia as well, the BBC reported yesterday.Statins reduce the amount of cholesterol in the bloodstream, thereby helping keeping vital blood vessels unclogged. Normally this is a method of protecting middle-aged and elderly patients from a potential heart attack, but a recent study suggests it may reduce the risk of dementia. The latest study in the U.K took information from more than 350 GP practices and looked for those patients with diagnosed dementia, comparing them to more than 1000 ordinary patients. They found patients aged 50 or above given statins had a substantially lowered risk of developing any sort of dementia, including Alzheimer's disease. One in ten people over the age of 65 develop some form of dementia. Dr Richard Harvey, director of research for the Alzheimer's Society, said:, it is certainly very important evidence. This re-enforces current thinking about possible links between Alzheimer's diseaseand vascular health."