Risk factors for stroke are strong predictors of future mental impairment.

Maintaining cognitive health is important for everyone as they age but for those who are already at risk for stroke the need is more urgent.

The volunteers were followed for an average of more than four years. After eliminating from consideration any who had had a stroke, the researchers found 1,907 who were cognitively impaired. After controlling for age, sex, race and education, researchers found that high blood pressure and left ventricular hypertrophy independently predicted cognitive impairment, and the more risk factors a person had, the greater the risk for mental problems.