UK – New UK study suggests brain fog after COVID-19 is linked to blood clots

A new UK study led by a research team from the University of Oxford and the University of Leicester has suggested that blood clots in the brain or the lungs could potentially explain common symptoms of long COVID.

The post-hospitalisation COVID-19 study (PHosp-COVID), published in Nature Medicine, found that people admitted to hospital due to COVID-19 had higher levels of the fibrinogen protein and protein fragment D-dimer, which can cause excess clotting.

Excess blood clotting was found to be a possible cause for symptoms like brain fog and fatigue in long COVID.
Previous research has found that blood clotting can cause a lack of blood supply to the brain or cause fatigue, which both can cause cognitive problems…