• What Can Your Eyes Reveal About Your Brain

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  • What Can Your Eyes Reveal About Your Brain

    Your eyes are an important part of your health.  The small vessels behind your eyes could reveal how healthy your brain is, according to a recent report in Psychological Science. 

    The scientists found that people with wider veins scored worse on IQ tests in middle age. Other factors like smoking, diabetes, or socioeconomic status couldn’t be to blame for the scores, says Idan Shalev, Ph.D., the study’s lead author. 

    What gives? Your eyes’ vessels may reflect the condition of your brain’s vessels because they're similar in size, structure, and function, says Shalev. “Eye vessels are developed from the same cells that brain vessels are developed from,” he adds. 

    Previous studies have linked the size of blood vessels in your eyes to risks for other diseases like dementia, cardiovascular disease, or stroke—but those studies were done in older people, says Shalev. This study found that the health of your eyes could indicate brain health at a much earlier age. The results were seen even in children. 

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