Eye blood vessels linked to IQ and cognitive functions – in other words, the back of your eye may indicate brain health

According to a new research published in Psychological Science, the width of blood vessels in the retina may indicate your brain health. Previous studies have already shown that younger people who score relatively low on IQ tests tend to be poorer and have a shorter lifespan — however, it’s still a matter of debate if this has a physiological cause,

Blood vessels in the eye linked to IQ and cognitive functions

It’s not quite what scientists expected – the width of blood vessels in the eye, at the back of the retina, may indicate brain health risks, such as dementia and alzheimers years before they actually set in according to a new study published in Psychological Science. It is already well known that young people who score very low at IQ