In patients with long COVID, lower pulmonary gas exchange may be associated with impaired cognitive function, according to a new study. In patients with long COVID, lower pulmonary gas exchange may be ...

You’ve probably heard people use the term “brain fog” to describe times when they felt like their brain function was slightly off. It’s often associated with symptoms like trouble concentrating, a ...

If you've found yourself wondering, What is brain fog? you're not alone. The issue is increasingly common—as many as one in four people who contract COVID-19 may develop brain fog, per a study in the ...

The cognitive cloud known as brain fog didn’t originate with COVID-19. It has long been identified in the wake of other viral infections, notably Lyme disease and myalgic encephalitis/chronic fatigue ...