Human eyes 'unveiled' IQ

A recent study has demonstrated that blood vessels in the eye can reveal a person's intelligence.

Psychologist Idan Shalev of Duke University, North Caroline, USA and colleagues have found a link between the vascular system that provides oxygen and nutrition to the brain, brain health and IQ.

They used retinal digital imaging, a new way to check the condition of blood vessels in the brain through observing small blood vessels in the retina. Blood vessels in the retina have the same function, structure, and size as blood vessels in the brain.

After collecting data from volunteers, scientists found that people with large retinal vessels often had low IQ, and they even had some cognitive problems like communication ability, ability to memorize work .

Blood vessels in the retina can reveal brain health, before the appearance of memory loss .

Thus, the relationship between blood vessels and cognitive function dates long before the onset of dementia and manifestations of decline are related to the age of brain function.

'Digital retinal imaging is not only a tool to check eye condition but also is used for psychologists to understand the relationship between intelligence and health in life , ' Shalev said. .

A deeper understanding of blood vessels in the retina can help scientists make better diagnoses and treatment regimens to increase oxygen levels in the blood, limiting a person's ability to impair cognitive impairment. old.