A study by David Batty and colleagues of the MRC Social and Public Health Sciences Unit at the University of Glasgow has found that higher IQ may lead to a longer life.
The study of 4,289 former soldiers in the United States found that about 23 per cent of the survival differences in varied social groups could be explained by higher IQ levels.
Advertisement"Intelligence may be a marker for something else, and it is that something else, early life exposures, for example, that leads to mortality," Dr Batty said. "Environmental exposures and health-related behaviours, such as smoking, diet and physical activity, can explain some of this difference, but not all of it."
The details of the study are published in European Heart Journal.
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