still, as we near the one-year anniversary of the pandemic, it’s not surprising that there is not a lot of research looking at symptoms beyond a few months, or studies that are able to tease apart more severe covid cases and the complicated factors that could be behind some of these lingering symptoms.
neuroscientist dr. adrian owen is co-leading the
covid-19 brain study
, a global study on how the virus affects cognition, long-term covid trajectory and who is most at risk of having persistent symptoms. anyone who has tested positive for the virus can enrol online and provide information about their experience and participate in 12 online brain tests. data is still preliminary, but a pattern seems to be emerging.
“people do have cognitive impairments, there’s no question about it, and they’re actually quite extensive across the board,” says owen.
some research suggests age and severity of illness have an effect; in other words, people who are older and sicker are more likely to have long-term effects. but owen says there’s a good chance that a cohort of younger people who weren’t hospitalized — like me — may face symptoms for at least several months following infection.
“based on our preliminary data, it looks like the worse your covid is, the worse your problems seem to be,” he says. “but you can be on the other end of the spectrum and be relatively asymptomatic and still suffer cognitive deficits at least in the first few months, although we don’t know about the long term just yet.”