What is brain fog and when does it need investigation
Brain fog is described as a subjective feeling of mental slowness or difficulty concentrating rather than a specific medical diagnosis. Experts distinguish it from occasional forgetfulness or fatigue, noting that it can be caused by various factors including sleep issues, stress, and mental health conditions.
Why it matters
Understanding the distinction between subjective cognitive complaints and clinical disorders helps patients seek appropriate medical advice and avoid unnecessary alarm.
‘ Brain fog’ is used to describe a feeling of mental slowness, difficulty concentrating, finding words, remembering information or processing things as quickly as before. But it is not a medical diagnosis, and persistent cognitive difficulties should not automatically be attributed to brain fog.
Brain fog is a subjective description of changes in cognitive functioning. People may feel that their thinking has become slower or more effortful, that they cannot concentrate on a task, lose their train of thought, struggle to find words or read something without absorbing the information.
“Brain fog is basically a subjective feeling that you are cognitively slow, that you are mentally slow, that you are not able to do your daily activities as quickly or as deftly as before,” says Srividhya S., associate consultant, department of neurology, Rela Hospital, Chennai.
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