(The Epoch Times)—A new study found that COVID-19 infection can cause cognitive deficits that persist for over a year and lower IQ scores in severe cases. Those with persistent symptoms that resolved had small cognitive deficits similar to those with a shorter illness duration.
In a large-scale observational study published on Feb. 29 in the New England Journal of Medicine (NEJM), researchers invited 800,000 people with varying levels of COVID-19 exposure and duration to take an online cognitive assessment and follow-up survey. Cognitive difficulties have been implicated in numerous syndromes following COVID-19, including long COVID, suggesting infection may have lasting effects on the mental processes of the brain.
The study’s authors hypothesized there would be measurable cognitive deficits after COVID-19 that would scale with the severity and duration of the illness. They also speculated that objective impairments in executive and memory function, especially poor memory and brain fog, would be observable in those with persistent symptoms.
Using an assessment tool for cognitive function, researchers estimated global cognitive scores among participants with a history of previous SARS-CoV-2 infection who had symptoms for at least 12 weeks—whether resolved or not—and among a control group of uninfected participants. While cognitive and memory deficits were small for people with mild infection who recovered from COVID-19 quickly, impairments were more pronounced in those with severe disease.
Greater Impairment With More Severe Disease
Of 112,964 participants who completed the survey, those who recovered from COVID-19 with symptoms that resolved in less than four weeks or by 12 weeks post-infection had similar small deficits in global cognition compared with those who had never had COVID-19.
Participants who had mild COVID-19 with resolved symptoms experienced a 3-point drop in IQ compared to uninfected participants. Those with unresolved persistent symptoms had a 6-point loss in IQ, and those with COVID-19 admitted to the intensive care unit experienced a 9-point loss in IQ. Reinfection with SARS-CoV-2 caused an additional loss in IQ of nearly 2 points compared to those who were not reinfected. An IQ, or intelligence quotient, is a number used to represent the relative intelligence of an individual.
According to the study, memory, reasoning, and executive function tasks were the strongest indicators of impaired cognitive function, and these scores correlated with brain fog symptoms reported by participants. More significant deficits were seen in those with unresolved persistent symptoms and those infected with earlier variants of the SARS-CoV-2 virus compared with those who never had COVID-19. Additionally, study participants who were hospitalized had greater deficits in cognitive function compared to those who were not hospitalized.
“By using an innovative cognitive test which has also been completed by people who did not have COVID-19, this important and well-conducted study provides the first accurate quantification of the scale of cognitive deficits in people who had COVID-19,” Maxime Taquet, a fellow in psychiatry at the National Institute for Health and Care Research at the University of Oxford, said in a statement.
Mr. Taquet said researchers found a small but obvious association between COVID-19 and cognition that was more pronounced at extremes.
“The risk of having more severe cognitive problems was almost twice as high in those who had COVID-19 compared to those who did not, and three times as high in those who were hospitalized with COVID-19,” he noted.
In an editorial published Feb. 29 in the NEJM, Drs. Ziyad Al-Aly and Clifford Rosen said the study’s results are concerning and have broad implications that require further evaluation to determine the functional impact of a 3-point loss in IQ and why one group of participants was more severely affected than another.
“Whether these cognitive deficits persist or resolve along with predictors and trajectory of recovery should be investigated. Will Covid-19-associated cognitive deficits confer a predisposition to a higher risk of Alzheimer’s disease or other forms of dementia later in life? The effects on educational attainment, work performance, accidental injury, and other activities that require intact cognitive abilities should also be evaluated,” they wrote.
Study Implications for People With Long COVID
The study’s participants were part of a larger community sample of nearly 3 million people in the Real-time Assessment of Community Transmission (REACT) study assessing SARS-CoV-2 transmission in England. Although the researchers did not say whether participants in the study had long COVID, people with long COVID frequently report persistent cognitive impairment.
There is no accepted universal definition for the condition, but the Centers for Disease Control and Prevention (CDC) broadly defines long COVID as “signs, symptoms, and conditions that continue to develop after acute COVID-19 infection” that can last for “weeks, months, or years.” The term “long COVID” also includes post-acute sequelae of SARS-CoV-2 infection, long-haul COVID, and post-acute COVID-19.
Nearly 7 percent of U.S. adults surveyed by the CDC in 2022 said they’ve experienced long COVID. Although U.S. regulatory agencies claim vaccinating against COVID-19 can reduce the risk of developing long COVID and the current paper suggests vaccination with two or more doses may provide a slight cognitive advantage, a recent paper published in the Journal of Clinical Medicine did not find a significant link between the presence of comorbidities or infection severity and the emergence of long COVID symptoms.
The NEJM study has several limitations, including reliance on subjective reporting to identify individuals with ongoing symptoms and self-selection bias. People with long COVID may have enrolled in the study, but those with more severe impairments may not have been able to participate in the survey. Additionally, certain groups were overrepresented in the study compared with the base population. Baseline cognitive data before SARS-CoV-2 infection was also unavailable, so researchers could not assess cognitive change or infer causality.
Why One Survival Food Company Shines Above the Rest
Let’s be real. “Prepper Food” or “Survival Food” is generally awful. The vast majority of companies that push their cans, bags, or buckets desperately hope that their customers never try them and stick them in the closet or pantry instead. Why? Because if the first time they try them is after the crap hits the fan, they’ll be too shaken to call and complain about the quality.
It’s true. Most long-term storage food is made with the cheapest possible ingredients with limited taste and even less nutritional value. This is why they tout calories so much. Sure, they provide calories but does anyone really want to go into the apocalypse with food their family can’t stand?
This is what prompted the Llewellyns to launch Heaven’s Harvest. They bought survival food from multiple companies and determined they couldn’t imagine being stuck in an extended emergency with such low-quality food. They quickly discovered that freeze drying food for long-term storage doesn’t have to mean sacrificing flavor, consistency, or nutrition.
Their ingredients are all-American. In fact, they’re locally sourced and all-natural! This allows their products to be the highest quality on the market, so good that their customers often break open a bag in a pinch to eat because they want to, not just because they have to due to an emergency.
At Heaven’s Harvest, their only focus is amazing food. They don’t sell bugout bags, solar chargers, or multitools. They have one mission – feeding Americans in times of crisis.
What they DO offer is the ability for people to thrive in times of greatest need. On top of long-term storage food, they offer seeds to help Americans for the truly long-term. They want them to grow their own food if possible which is why they offer only Heirloom, Non-GMO, Non-Hybrid, Open-Pollinated seeds so their customers can build permanent food security on their own property.
how do you test for covid=19?
there is no test.
Weird — the stories and articles out of Epoch Times, and I says this as a long term donor to them, being an anticommunist!!!
Over the past six months have read not–so–subtle DEEP STATE articles by Hans Mancke, Tucker, and a commie economist whom the idiot commenters gushed over as they were too simpleton to grasp this?!
Still unsure about Alex Newman — he wrote a book on “Deep State” but appears to agree with a pile of Deep State drivel known as the “Warren Commission Report” — what the …….
There have been over 300 articles on lawfare cases against Trump — — still ZERO mention of THE 65 PROJECT and the American Law Institute!!!!
Weird???
All these articles — where is any mention of PHARMA, a k a the GATES FOUNDATION?!?!
How many of the participants were vaxxed? How many doses?