Scientist: COVID linked to lower IQ

“Even in mild cases, COVID-19 presents a significant threat to brain health, with its effects becoming apparent on a population-wide scale,” stated clinical epidemiologist Ziyad Al-Aly.

Increasing scientific evidence indicates that infection with SARS-CoV-2, the virus responsible for COVID-19, profoundly affects brain health in various ways.

Physician and clinical epidemiologist Ziyad Al-Aly penned an essay for The Conversation, later republished by Scientific American, outlining numerous studies highlighting the enduring impact of COVID-19 on the brain and its functions.

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Al-Aly detailed that extensive epidemiological analyses revealed an elevated risk of cognitive impairments, including memory issues, among individuals who contracted COVID-19. Additionally, research on those with mild to moderate cases showed prolonged brain inflammation and changes equivalent to seven years of aging.

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Autopsies on COVID-19 victims unveiled significant brain damage, even among those with mild symptoms. Notably, the virus persisted in brain tissue months after death, suggesting broader neurological implications beyond respiratory effects.

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Studies on hospitalized patients with COVID-19 experiencing brain fog indicated disruptions to the blood-brain barrier, a vital shield safeguarding the nervous system.

Al-Aly highlighted findings showing cognitive decline equivalent to a three-point loss in IQ among those with resolved COVID-19, with more severe cases correlating with greater declines in cognitive function, up to a nine-point decrease for ICU admissions.

Written by Telha

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