Brain fog

Brain fog manifests as impaired working memory and concentration accompanied by difficulty processing complex information.

It is a type of cognitive impairment experienced by ME/CFS patients. Fibromyalgia patients often refer to it as "fibro-fog".

Prevalence

 * Katrina Berne reports a prevalence of 75-100% for confusion and inability to think clearly.

Notable studies

 * 2013, What is brain fog? An evaluation of the symptom in postural tachycardia syndrome
 * 2018, Cognitive Impairment in Fibromyalgia: A Meta-Analysis of Case–Control Studies

Learn more

 * 20 Aug 2013, Brain Fog in ME/CFS: What’s Going On?