Is it possible that your IQ is a better predictor of death from heart disease than the traditional predictor such as blood pressure, lack of exercise, income, etc.
In a study of more than 1,100 middle-aged Scottish men and women who were followed for 20 years, a low score on an IQ test was a better predictor of death from heart disease than traditional risk factors such as systolic blood pressure — the first number in a blood pressure reading — income, and lack of exercise. Only smoking topped low IQ as a predictor of death, according to G. David Batty, a researcher at the University of Glasgow.

Batty and his colleagues, who reported their observations in the European Journal of Cardiovascular Prevention and Rehabilitation, found a similar link when they studied Vietnam veterans.

It may have to do with one’s ability to understand and follow various advices related to healthy heart.

Researchers found that smoking is still the biggest trigger of heart disease.  It is about 5 times more dangerous than lower IQ level.

The study has drawn a lot of criticism from American doctors. However, it is an observation worth noting and can help in design of better healthy living programs.