About brain fog
Brain fog is reported in many complex conditions, including ME/CFS, POTS, fibromyalgia and mast cell disorders, and after some infections. It can also be linked to poor sleep, hormonal changes such as menopause, depression or anxiety, medication side effects, and nutrient deficiencies such as low vitamin B12 or iron.
Common symptoms and challenges
- Difficulty focusing or following conversations
- Slower thinking and processing
- Forgetfulness and word-finding problems
- Mental fatigue that worsens with effort, standing or poor sleep
Biological factors
Well established: Treatable contributors include sleep disorders, thyroid problems, anemia and low vitamin B12.
Emerging research: Researchers are studying reduced blood flow to the brain when upright, inflammation, and changes in energy metabolism as possible contributors in complex illnesses.
Genetics: Genetic variation influences aspects of cognition and stress response, but genes can't explain or diagnose brain fog.
Laboratory testing
A clinician may check blood counts, iron, vitamin B12, thyroid function and blood sugar, and ask about sleep, mood and medications. New or worsening memory problems deserve a medical assessment.
Important limitations: The genetic test below describes tendencies related to brain health, as defined by dnaPower. It can't explain the cause of brain fog, measure cognitive function or diagnose any condition.
