As the Covid-19 pandemic continues, scientists are learning more about how the virus affects the brain. The news isn’t good. One recent study reported on The Guardian found that survivors were more likely to experience psychiatric and neurological illness in the six months after their Covid-19 diagnosis. Another study, this one on mice, found that Covid-19 can “hide” in the brain, making the condition much more serious for some patients and potentially increasing long-term risk for other medical conditions.