It's part of a number of vascular risk factors, which include high blood pressure, especially at your age—40 to 60. In mid-life, high blood pressure is a known risk factor for dementia in general and Alzheimer in particular. That's preventive with technologies already available. That also includes diabetes, which is on the rise in our continent; high cholesterol, which we're starting to control in mid-life now, with appropriate medications, with exercise and diet; smoking is a factor we're controlling. So cholesterol should be seen as part of a number of vascular risk factors on which we do have some control.
On November 30th, 2010. See this statement in context.