Lower IQ 'a heart disease risk'

Having a lower than average IQ is in itself a risk factor for heart disease, say UK researchers. Given the findings, public health messages on things like exercise and diet could be simplified, the authors say in the European Heart Journal. In the study of over 4,000 people, IQ alone explained more than 20% of the difference in mortality between high and low socioeconomic groups. This applied even when known heart disease risk factors were considered. - BBC